Harness

Focal Inside wiring harness kits are engineered for true Plug & Play integration with factory head units and amplifiers, making it easier to upgrade your car audio system without cutting or splicing the original wiring. Each vehicle-specific harness is designed to interface directly with OEM connectors, allowing you to add Focal speakers, amplifiers and subwoofers while maintaining the integrity of the factory loom.

By using these dedicated harness solutions, installers and enthusiasts can achieve clean, reversible OEM-style installations that are easier to troubleshoot, easier to remove and far less likely to cause electrical issues or warranty concerns. Whether you’re adding a compact Focal amplifier, integrating a subwoofer or running full Focal Inside speaker kits, these Plug & Play harnesses from Focal Australia save time, reduce installation risk and help ensure consistent, reliable performance from your upgraded system.