Focal IW TOYV2 YISO Harness | Toyota Amplifier Integration
One-metre ISO harness for selected later Toyota, Lexus and Subaru factory head units and the Focal Impulse 4.320.
Connect the Focal Impulse 4.320 to a Compatible Toyota Factory Head Unit
The Focal IW TOY Y-ISO Harness V2 routes compatible speaker-level signals from selected Toyota, Lexus and Subaru factory head units through the Focal Impulse 4.320 while retaining the original radio and vehicle functions.
Toyota Factory Audio Compatibility
Not compatible with factory amplified or premium Toyota audio systems. Designed for compatible non-amplified factory audio systems only. Please refer to the Compatibility Guide or contact your nearest Authorised Focal Australia Dealer to confirm compatibility.
The harness is designed for compatible non-amplified systems only. Premium JBL, Mark Levinson and other amplified systems are not supported by the standard Y-ISO and Impulse installation.
Designed for the Focal Impulse 4.320 Amplifier
The V2 harness provides the factory-head-unit connection for the Impulse 4.320. The amplifier, extension cable, output harness, fused power wiring, ground and speakers are separate unless included in a pack.
One-Metre Toyota V2 ISO Harness Cable
The official V2 harness is supplied as a one-metre ISO cable.
ISO Connections Without Soldering
Dedicated Toyota-family and ISO connectors support integration without individually cutting or soldering compatible speaker wiring.
Select V2 by Factory Head Unit, Not Model Year Alone
Some pre-2021 vehicles use V2, while some newer vehicles require the original Toyota harness or another connector. Harness selection is determined by the actual factory head unit.
Original and V2 Toyota Harnesses Are Different
The original and V2 harnesses support different connectors and are not interchangeable. Applications marked original or V2 require physical connector inspection.
Retain the Original Factory Head Unit
A compatible original Toyota, Lexus or Subaru radio remains installed, preserving steering-wheel controls, cameras, navigation and vehicle settings. Aftermarket radios normally require conventional wiring.
Additional Focal Inside Components Required
Focal Impulse 4.320 amplifier
Compatible Focal Inside extension cable
Correct IW IMP amplifier harness
Fused power cable and ground cable
Compatible front and rear speakers
The Harness Does Not Power the Amplifier
The harness carries audio and speaker connections only. A separate fused electrical supply and secure ground are required.
Factory Equalisation and Processing May Remain
Factory equalisation and frequency shaping remain in the signal. The V2 harness does not provide digital signal correction.
Professional Installation Recommended
Professional installation is recommended to identify the V2 connector, verify the non-amplified system, install fused power and configure the amplifier.
Confirm Compatibility Before Purchasing
Not compatible with factory amplified or premium Toyota audio systems. Designed for compatible non-amplified factory audio systems only. Please refer to the Compatibility Guide or contact your nearest Authorised Focal Australia Dealer to confirm compatibility.
