BYD

Upgrade your BYD’s factory audio system with Focal Inside Plug & Play speaker kits, supplied and supported by Focal Australia. These OEM-fitment packages are designed specifically for BYD vehicles, using original mounting points and plug-in connectors so there is no cutting, no splicing and no modification to the cabin. Installation is clean and fully reversible, preserving the integrity of your EV while dramatically improving everyday sound quality.

By replacing the factory speakers with high-performance Focal drivers, you gain clearer vocals, stronger mid-bass and smoother, more detailed highs, all while keeping your original head unit and vehicle functions intact. Whether you use your BYD for commuting, ridesharing or road trips, these Plug & Play kits transform the in-car listening experience with a precise, dynamic soundstage tailored to your vehicle.

BYD vehicles combine electric or plug-in hybrid powertrains with connected infotainment, modern interiors and increasingly sophisticated factory audio systems. However, the original speakers may not provide the clarity, mid-bass control, treble detail or overall musical balance some owners want.

Focal Australia lists selected Focal Inside speaker solutions for compatible BYD vehicles. Depending on the exact model, production year and factory audio configuration, these may include the IS TOY 165, IS TOY 165 TWU, IC TOY 165 or IS TOY 690.

These products use vehicle-compatible mounting and connection solutions in the applications for which they are listed. Available options include component systems with separate tweeters, coaxial rear speakers and larger component speakers for selected vehicles.

Compatibility must be checked carefully. The current Focal Australia compatibility information applies only to the specified vehicle and audio configurations. Focal Plug & Play speakers listed on this page are not suitable for BYD vehicles fitted with factory premium or amplified audio systems unless a dealer confirms a different professionally engineered solution.

The BYD model, production date, trim level, country of origin and original speaker system can all change the installation requirements. A product listed for one Atto 3, Dolphin or Sealion configuration should not automatically be assumed compatible with every version carrying the same model name.

Use the compatibility table as an initial guide, then confirm the complete vehicle and factory audio details with an Authorised Focal Australia Dealer before purchasing or installing any products.

1. What are the best speaker upgrades for a BYD?

The best BYD speaker upgrade depends on the exact model, production year, trim level, factory audio system and level of sound quality you want to achieve.

The current Focal Australia BYD compatibility table lists several possible Focal Inside products:

• IS TOY 165 component speaker kit
• IS TOY 165 TWU component speaker kit with flexible tweeter installation
• IC TOY 165 coaxial speaker kit
• IS TOY 690 component speaker kit
• HILO V3 high-to-low-level signal converter for selected professionally designed amplifier installations

The IS TOY 165 and IS TOY 165 TWU use separate woofers and tweeters to improve front-stage clarity, vocal positioning and treble detail. The TWU version is particularly useful in compatible vehicles where the original tweeter location or mounting arrangement requires a more flexible solution.

The IC TOY 165 combines the woofer and tweeter into one coaxial assembly and is generally used in compatible rear-speaker positions. The IS TOY 690 uses a larger component woofer arrangement and is listed for selected earlier BYD models.

For many owners, upgrading the front component speakers is the most effective starting point. The front speakers have the greatest influence on vocals, instruments, stereo imaging and the overall listening experience from the driver’s seat.

Where compatible rear replacements are available, upgrading the rear speakers can improve sound distribution and provide a more consistent tonal balance throughout the cabin.

Products must be selected from the compatibility information rather than from the visible diameter of the original speakers. Mounting depth, basket shape, electrical connectors, impedance, factory amplification and signal processing must also be considered.

2. Does Focal offer Plug & Play speaker upgrades for BYD vehicles?

Yes. Focal Australia lists Focal Inside speaker solutions for selected BYD models and compatible non-premium, non-amplified factory audio systems.

Depending on the application, a compatible installation may retain:

• The original BYD infotainment screen
• Factory radio and media functions
• Steering-wheel audio controls
• Bluetooth telephone and audio streaming
• Apple CarPlay and Android Auto
• Navigation instructions
• Voice-assistant audio
• Parking-sensor tones
• Reversing-camera information
• Warning and notification sounds
• Original speaker grilles
• The standard appearance of the interior

Plug & Play means the speaker kit has been developed to use compatible factory locations, mounting arrangements and electrical connections in the vehicles for which it is specifically listed.

It does not mean that every Focal Inside product will fit every BYD. It also does not guarantee that every speaker in the vehicle can be replaced without additional work.

The current compatibility table identifies some applications that require tweeter-connector adaptation or do not have a suitable original tweeter pod. The BYD Seal is identified as having a three-way system, but no direct speaker combination is currently assigned in the table.

Vehicles with factory premium or amplified audio are specifically excluded from the standard Plug & Play compatibility guidance. These systems may use different impedance values, additional speakers, separate amplifier channels, active filtering and factory signal processing.

An Authorised Focal Australia Dealer should confirm whether the proposed installation is completely direct-fit, requires a minor connector or tweeter adaptation, or needs a more extensively customised solution.

3. Which BYD models can use Focal Inside speaker upgrades?

The current Focal Australia compatibility table lists selected applications for:

• BYD Atto 3
• BYD Dolphin
• BYD E6
• BYD F3
• BYD F3 R
• BYD F6
• BYD G3
• BYD G5
• BYD G6
• BYD L3
• BYD S6
• BYD S7
• BYD Sealion
• BYD Seal
• BYD Song
• BYD Song Max
• BYD Song Pro
• BYD Surui
• BYD Tang
• BYD Yuan
• BYD Yuan Plus

Some of these are international-market models that may not have been officially sold in Australia. Vehicles imported privately can have different trim levels, infotainment equipment, wiring and factory audio systems from Australian-delivered models.

Compatibility can also vary within a model family. For example, the Atto 3 is related to the Yuan Plus sold in other markets, but this does not mean that every Atto 3 and Yuan Plus shares an identical Australian audio configuration.

The general “Sealion” entry should not be assumed to cover every Sealion 5, Sealion 6, Sealion 7 or Sealion 8. These are different vehicles and can use different speaker layouts and factory audio systems. Some Australian Sealion variants use premium branded audio systems that are outside the standard compatibility guidance.

Similarly, the current table does not automatically confirm a direct-fit solution for every newer BYD model, including the Atto 1, Atto 2, Shark 6 or future model releases.

An unlisted vehicle may still have a suitable upgrade path using Focal speakers, custom mounting adaptors, amplification, digital signal processing or a Specialised Subwoofer. However, it must be inspected and designed as a custom installation rather than represented as an established Plug & Play fitment.

4. What Focal speakers fit the BYD Atto 3?

The current Focal Australia compatibility table lists the IS TOY 165 TWU for the front and rear component-speaker positions of compatible BYD Atto 3 vehicles produced from 2022 to 2025.

The IS TOY 165 TWU is a two-way component speaker system comprising separate woofers and tweeters. It uses Focal’s Polyglass cone technology for defined midrange and controlled mid-bass, together with an inverted-dome tweeter for clear and detailed high-frequency reproduction.

A compatible Atto 3 installation can improve:

• Vocal clarity
• Instrument separation
• Front-stage definition
• Treble detail
• Mid-bass control
• Overall sound balance

The compatibility listing should not be treated as confirmation for every Atto 3. BYD has introduced different trim levels and equipment specifications, and newer Australian versions may include an eight-speaker system with Dirac sound processing.

Dirac branding does not by itself confirm whether the system is suitable or unsuitable. The installer must establish whether the vehicle has separate factory amplification, how the signals are processed and whether the original speakers match the electrical and physical requirements of the proposed Focal products.

The production date, trim level and original system should therefore be checked before ordering. Where necessary, the installer may inspect the factory speaker connectors, impedance, mounting depth and available signals.

If the Atto 3 has a factory premium or amplified system, the standard Plug & Play products listed on this page should not be installed unless compatibility has been specifically confirmed by an Authorised Focal Australia Dealer.

5. What Focal speakers fit the BYD Dolphin?

The current compatibility table lists the IS TOY 165 TWU for compatible front and rear component-speaker positions in the BYD Dolphin from 2023 to 2026. It also lists the IC TOY 165 as a possible rear coaxial-speaker solution.

The correct rear product depends on the actual speaker arrangement fitted to the vehicle. A Dolphin with separate rear tweeters may require a different solution from one using a single coaxial rear-speaker position.

The IS TOY 165 TWU provides separate woofers and tweeters. This configuration can improve front-stage clarity, treble placement and overall definition when the vehicle has appropriate mounting locations.

The IC TOY 165 is a two-way coaxial speaker that incorporates the tweeter into the main speaker assembly. It may be suitable for compatible rear locations where separate tweeters are not required.

The Australian BYD Dolphin has been offered with a six-speaker factory audio system, but specifications can change between model years and variants. The number of speakers alone is not enough to confirm the required products.

Before purchase, the installer should confirm:

• Production month and year
• Dolphin variant
• Number of factory speakers
• Presence or absence of separate tweeters
• Factory speaker connectors
• Speaker impedance
• Mounting depth
• Whether separate factory amplification is fitted
• Any previous aftermarket modifications

If the vehicle has a factory premium or amplified system, the standard Plug & Play compatibility information does not apply without further professional confirmation.

6. Can the BYD Seal or Sealion audio system be upgraded?

Potentially, but the exact model and factory audio configuration must be established first.

The current Focal Australia compatibility table lists the BYD Seal from 2023 onward as using a three-way system with 6.5-inch and 4-inch speaker sizes. However, the table does not assign a direct Focal replacement combination to the Seal.

This means owners should not select a product merely because it appears to have the same nominal diameter as one of the original speakers.

Australian BYD Seal variants can use a premium 12-speaker Dynaudio system. This is a factory premium, amplified and processed configuration, so it falls outside the standard Plug & Play speaker compatibility guidance on this page.

The table also contains a general “Sealion” entry from 2024 onward, listing IS TOY 165 front speakers and IC TOY 165 rear speakers, with a note that the tweeter connectors require adaptation.

That entry should not automatically be applied to every vehicle carrying the Sealion name. The Sealion 5, Sealion 6, Sealion 7 and Sealion 8 are different models. Depending on the version, their factory systems may include:

• Standard multi-speaker audio
• Infinity-branded audio
• Dynaudio premium audio
• DiSound premium audio
• Separate factory amplification
• Additional centre or surround speakers
• Active signal processing
• Different speaker sizes and connectors

A compatible standard-audio Sealion may support a Focal upgrade after inspection. A premium or amplified version requires system testing and a professionally designed integration strategy.

For a Seal or premium-audio Sealion, an Authorised Focal Australia Dealer may be able to develop a custom solution using selected Focal speakers, amplification and digital signal processing. However, this should not be represented as a confirmed direct-fit installation until the exact vehicle has been assessed.

7. How do I confirm which Focal speakers will fit my BYD?

Begin by collecting the complete vehicle details:

• Exact BYD model
• Production month and year
• Model year
• Trim or variant
• Battery electric or plug-in hybrid configuration
• Australian-delivered or privately imported specification
• Number of factory speakers
• Any audio branding
• Factory infotainment-system details
• Whether a separate factory amplifier is fitted
• Any previous aftermarket modifications

Compatibility can be affected by:

• Speaker diameter
• Mounting depth
• Basket shape
• Mounting-tab pattern
• Electrical connector
• Factory speaker impedance
• Separate tweeter locations
• Centre or surround speakers
• Factory crossovers
• Active frequency filtering
• Factory equalisation
• Door and window clearance
• Production changes within the same model
• Different equipment fitted to individual trim levels

A speaker’s visible diameter is only one part of compatibility. Two nominally 165mm speakers can have different mounting depths, bolt patterns, electrical requirements and connector arrangements.

The compatibility table should be checked by model, year and speaker position. A product listed for the front doors should not automatically be used in the rear doors, and a component speaker should not automatically replace a factory three-way system.

Photographs of the speaker grilles, infotainment audio menu and any factory audio branding can help. In uncertain cases, the dealer may need to remove an appropriate trim panel and inspect the original speaker, connector and mounting arrangement.

Final fitment should be confirmed before products are purchased or the vehicle is disassembled for installation.

8. Can a BYD with factory premium or amplified audio be upgraded?

Potentially, but not with the standard Plug & Play approach described for compatible non-amplified systems.

The Focal Australia BYD compatibility notes specifically state that the listed Focal Plug & Play speakers do not suit BYD vehicles fitted with factory premium or amplified audio.

Premium systems can include:

• A separate multichannel amplifier
• Lower-impedance or application-specific speakers
• Additional centre and surround channels
• Three-way front-speaker systems
• Active crossovers
• Factory equalisation
• Time alignment
• Cabin-specific tuning
• Bass management
• Navigation and warning sounds assigned to particular channels
• Digital communication between the infotainment unit and amplifier

Current Australian BYD examples include Dynaudio systems in selected Seal, Sealion 7 and Shark 6 vehicles, Infinity audio in selected Sealion 6 variants and other premium configurations across newer models.

Replacing an individual speaker simply because it fits physically can alter impedance, frequency response, system balance and factory-amplifier operation.

An experienced installer must determine:

• Which factory amplifier is fitted
• What impedance the original speakers use
• What frequency range is supplied to each speaker
• Whether the source signal is analogue or digital
• How vehicle notifications are routed
• Whether a suitable signal can be obtained for additional amplification
• Whether the original amplifier should be retained

In some vehicles, retaining the premium factory system may be the most sensible option. In others, a specialist may be able to improve selected areas or design a more comprehensive Focal system around the original infotainment equipment.

9. I have a broken BYD speaker. Where can I get a replacement?

An Authorised Focal Australia Dealer can inspect the system, identify the cause of the problem and recommend a compatible Focal replacement or upgrade where available.

Possible signs of a faulty speaker include:

• Crackling or distortion
• Buzzing during bass notes
• No sound from one speaker
• Intermittent operation
• Reduced volume
• Missing treble
• Weak midrange
• Rattling from a door panel
• A noticeable difference between the left and right sides

The speaker should be tested before a replacement is ordered. Loose trim, damaged wiring, moisture, a poor electrical connection, factory amplifier faults and infotainment problems can produce symptoms similar to a damaged speaker.

Modern factory systems may also send different frequency ranges to different speakers. A door woofer may receive only bass and lower-midrange frequencies, while a separate tweeter or dashboard speaker handles higher frequencies. A speaker that appears silent during an unsuitable test may not necessarily be defective.

Where one speaker has failed, replacing the corresponding left and right speakers as a matched pair is generally preferable. This helps maintain consistent sensitivity, tonal balance and sound quality across the vehicle.

The replacement must also be electrically compatible with the factory system. An unsuitable impedance can change output, affect system balance or place an inappropriate load on the original amplifier.

If the vehicle has Dynaudio, Infinity, DiSound or another premium or amplified system, it requires individual assessment rather than selection from the standard Plug & Play table.

10. What should I upgrade first in my BYD audio system?

For most owners, the front speakers are the most effective starting point. They have the greatest influence on vocals, instrument placement, stereo imaging and the overall listening experience from the driver’s seat.

A properly designed first stage may include:

• Compatible Focal front component speakers
• Correct tweeter positioning
• Secure speaker mounting
• Appropriate sealing around the speaker
• Confirmation of speaker polarity
• Acoustic treatment where suitable
• Testing of the original audio signal

For compatible Atto 3 and Dolphin applications, the IS TOY 165 TWU may provide a direct starting point, subject to confirmation of the factory system.

Rear speakers can then be considered if rear-seat sound quality or consistent cabin coverage is important. The IC TOY 165 may be suitable for selected rear coaxial locations, while some vehicles are listed with component speakers in the rear.

If deeper bass is the main concern, a compact subwoofer may provide a greater improvement than replacing every rear speaker.

Amplification and DSP can be added later where the factory system, budget and performance goals justify them. However, the required integration should be planned before purchasing individual products.

Vehicles with factory premium or amplified audio need a complete system assessment before deciding which component should be upgraded first. Replacing the front speakers without understanding the factory crossovers, impedance and centre-channel contribution can produce an unbalanced result.

11. Do I need an amplifier after upgrading my BYD speakers?

Not always. The Focal Inside speaker products listed for compatible BYD systems are efficient and may provide a worthwhile improvement when operated from the original non-amplified infotainment system.

Suitable additional amplification can provide:

• Greater clean volume
• Improved speaker control
• Stronger dynamics
• Better mid-bass
• Reduced distortion at higher listening levels
• Improved performance from upgraded speakers
• More flexibility for future subwoofer installation

However, the current BYD compatibility table does not list a dedicated BYD Plug & Play amplifier harness. The presence of the HILO V3 high-to-low-level converter in the product category should not be interpreted as a universal amplifier installation kit.

A high-to-low-level converter may allow a suitably qualified installer to derive an audio signal for an aftermarket amplifier in an appropriate system. It does not resolve every issue involving factory equalisation, active filtering, speaker impedance, digital audio or warning-sound routing.

Before installing an amplifier, the dealer should test the available factory signals and confirm:

• Whether the system is already amplified
• Signal voltage
• Frequency response
• Factory equalisation
• Speaker impedance
• Remote turn-on requirements
• Suitable low-voltage power capacity
• Grounding and cable-routing requirements
• Retention of vehicle sounds and functions

An amplifier should be selected as part of the complete system design rather than added solely to make the installation louder.

12. Does a BYD audio upgrade need a DSP?

A digital signal processor is not required for every BYD speaker upgrade, but it can be valuable when integrating additional amplification or working with a factory-processed audio system.

A DSP allows an installer to:

• Correct or manage factory equalisation
• Combine compatible factory signals
• Set crossover frequencies
• Balance individual speaker levels
• Apply equalisation
• Adjust time alignment
• Improve stereo imaging
• Integrate a centre speaker where applicable
• Blend a subwoofer with the door speakers
• Create different listening presets

A straightforward speaker replacement in a confirmed compatible non-amplified system may not require a DSP.

DSP becomes more important where the original system uses separate amplifier channels, active filtering, a three-way front stage, centre or surround speakers, premium branded audio or extensive factory processing.

The installer must first determine what signals are available. A processor cannot restore audio information that was never present in the captured signal, and it cannot safely correct an incompatible electrical load.

A DSP also cannot compensate for incorrectly selected speakers, unsuitable mounting, poor sealing or inadequate amplification. The speakers, signal interface, processor, amplifier and subwoofer should be designed and tuned as one complete system.

Professional tuning is essential. Simply installing a DSP without measuring and adjusting the system will not automatically improve sound quality.

13. Can I improve the bass in my BYD without losing all my boot space?

Yes. A BYD bass upgrade does not necessarily require a large enclosure occupying most of the luggage area.

Depending on the model and available space, possible solutions may include:

• Compact powered subwoofers
• Shallow subwoofer enclosures
• Side-mounted luggage-area installations
• Under-seat solutions where clearance permits
• Custom enclosures designed around unused spaces
• Selected Focal Specialised Subwoofer products

The correct solution depends on the BYD model, desired bass output, factory audio system and available equipment locations.

The installation should preserve access to:

• Charging cables
• Luggage areas
• Folding rear seats
• Underfloor storage
• Tyre-repair equipment
• Vehicle control modules
• Low-voltage battery equipment
• Cooling and ventilation systems
• Factory service points

A compact subwoofer can add deeper and better-controlled bass while relieving the door speakers of frequencies they may struggle to reproduce cleanly.

If the vehicle has a factory premium or amplified system, the original bass channels must be identified before another subwoofer is added. Factory equalisation, bass reduction at higher volume, active filtering, polarity and timing can all affect the result.

Correct crossover settings, level, phase and time alignment are essential. A poorly integrated subwoofer may sound disconnected or produce less bass because of cancellation with the factory speakers.

An Authorised Focal Australia Dealer can assess the available space and recommend a bass solution that balances performance with normal vehicle practicality.

14. Will a Focal upgrade affect my BYD’s infotainment, EV systems or warranty?

A correctly designed speaker upgrade can normally retain the original BYD infotainment system and factory controls.

Depending on the vehicle, functions that may need to be preserved include:

• Steering-wheel audio controls
• Bluetooth telephone audio
• Apple CarPlay and Android Auto
• Navigation instructions
• Voice-assistant responses
• Parking-sensor tones
• Reversing-camera information
• Safety and warning sounds
• Vehicle configuration functions
• Over-the-air software features
• Factory audio settings
• Emergency-call audio where equipped

Some functions may reproduce sound through particular factory speakers or amplifier channels. These must be identified before factory speakers, amplification or signal routing are changed.

BYD battery electric and plug-in hybrid vehicles contain high-voltage propulsion systems. Conventional aftermarket audio equipment normally operates from the vehicle’s low-voltage system and must remain separate from high-voltage wiring and components.

Installation must not obstruct or alter:

• High-voltage cabling
• Battery components
• Charging equipment
• Cooling systems
• Airbags
• Safety sensors
• Control modules
• Low-voltage battery monitoring
• Vehicle ventilation
• Manufacturer service points

The vehicle’s low-voltage electrical capacity must also be considered before installing powerful amplifiers.

Focal products supplied through the Authorised Focal Australia Dealer Network are supported by Australian product warranty coverage. BYD determines the conditions applying to the vehicle warranty.

Owners concerned about warranty implications should check the applicable conditions with BYD or an authorised BYD service centre before proceeding. The installation should be documented, correctly fused, professionally completed and limited to the audio components involved.

15. How much does it cost to upgrade a BYD sound system?

The total cost depends on the BYD model, factory audio system, number of speakers being replaced and whether amplification, DSP, acoustic treatment or an additional subwoofer is required.

Possible upgrade stages include:

• Front speaker replacement
• Front and rear speaker replacement
• Acoustic treatment
• High-to-low-level signal integration
• Additional amplification
• Digital signal processing
• Compact powered subwoofer installation
• Custom subwoofer installation
• A complete professionally tuned system

A compatible pair of Focal Inside speakers will cost less than a complete system involving front and rear speakers, amplification, DSP, acoustic treatment and a subwoofer.

Installation costs may also be affected by:

• Interior disassembly requirements
• Factory-system identification
• Speaker impedance testing
• Connector or tweeter adaptation
• Custom speaker mounts
• Factory amplifier integration
• Signal testing
• Equipment mounting
• Power and grounding requirements
• DSP configuration
• System tuning
• Protection of the vehicle interior

A compatible non-amplified Atto 3 or Dolphin may provide a comparatively straightforward upgrade path. A Seal, Shark 6 or premium-audio Sealion with Dynaudio, Infinity, DiSound or another amplified configuration will normally require considerably more investigation and integration work.

Use the compatibility table to identify the initial product options, then provide the exact model, production date, trim level, factory audio details and desired performance level to an Authorised Focal Australia Dealer. The dealer can then prepare a recommendation and installation quotation for the actual vehicle.

Upgrade Your BYD with Focal Sound

Whether you drive a BYD Atto 3, Dolphin, Seal, Sealion, Shark 6, E6, Tang, Song, Yuan Plus or another BYD model, Focal Australia can help you investigate options for clearer vocals, stronger mid-bass, smoother treble and improved overall sound quality.

The current Focal Inside compatibility table provides direct-fit starting points for selected vehicles and non-amplified factory systems. Available products include component speakers, coaxial speakers and larger speaker solutions for specific applications.

Not every BYD has a confirmed Plug & Play solution. The Seal uses a three-way system for which no direct replacement combination is currently assigned, while several newer Australian BYD models use factory premium or amplified audio that requires specialist testing and integration.

If your vehicle is not covered by the table, an Authorised Focal Australia Dealer may still be able to create a tailored upgrade using Focal speakers, custom mounting adaptors, amplification, DSP, acoustic treatment and a Specialised Subwoofer.

Provide the model, production date, trim level and factory audio details when making an enquiry. Include photographs of any Dynaudio, Infinity, DiSound or other audio branding where applicable.

Because factory equipment can vary between production dates, variants and markets, all products should be confirmed before purchase or installation.

For compatibility confirmation, product advice and professional installation, contact an Authorised Focal Australia Dealer.

All vehicle manufacturer names, vehicle model names and other brand references appearing on this website are used solely for identification, informational and compatibility purposes, including to assist consumers in identifying Focal aftermarket audio products that may be suitable for their vehicle.

Focal products displayed within vehicle-specific pages are aftermarket audio products and are not represented original equipment manufacturer (OEM) parts unless expressly stated otherwise.

References to vehicle manufacturers, makes and models are intended only to describe the application, compatibility or intended use of the relevant Focal aftermarket product and should not be interpreted as indicating any commercial relationship, partnership, sponsorship or endorsement by the referenced vehicle manufacturer.

Vehicle compatibility may vary according to model year, vehicle specification, factory audio system, equipment level and market configuration. Compatibility information should therefore be used as a guide, and customers should consult an Authorised Focal Australia Dealer to confirm suitability before purchasing or installing any aftermarket Focal product.