Description
Focal IW TOY YISO Harness | Ford Amplifier Integration
One-metre ISO harness for selected Ford and related factory head units and the Focal Impulse 4.320.
Connect the Focal Impulse 4.320 to a Compatible Ford Factory Head Unit
The Focal IW TOY Y-ISO Harness routes compatible speaker-level signals from selected Ford Next Generation factory head units through the Focal Impulse 4.320 while retaining the original radio and integrated vehicle functions.
Ford Factory Audio Compatibility
Not compatible with factory B&O or other factory amplified Ford 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 standard Y-ISO and Impulse installation is for compatible non-amplified systems only. B&O and other factory-amplified systems are not supported. Selected later applications may also require IWÂ SPKÂ SIM.
Designed for the Focal Impulse 4.320 Amplifier
The harness provides the vehicle-side connection for the Impulse 4.320. Extension and output harnesses, fused power wiring, ground and compatible speakers are also required.
ISO Connections Without Soldering
Vehicle-specific and ISO connectors support integration without individually soldering compatible factory speaker wiring.
Select the Harness by the Actual Factory Connector
Current compatibility data assigns the original harness to selected later Ford vehicles. Other models or years require V2, universal Fakra or further connector checking
Retain the Original Factory Head Unit
A compatible original head unit remains installed, preserving steering-wheel controls, cameras, navigation, parking displays and vehicle settings. Aftermarket radios normally require conventional wiring.
Additional Focal Inside Components Required
Focal Impulse 4.320 amplifier
Compatible extension and IWÂ IMPÂ harnesses
Fused power cable and ground cable
IW SPK SIM where specified
Compatible Focal speakers
The Harness Does Not Power the Amplifier
The Y-ISO Harness does not provide the amplifier power supply. A correctly sized, fused power connection and secure ground are required.
Factory Equalisation and Processing May Remain
Factory equalisation and bass limiting remain after the harness and amplifier are installed. Advanced correction may require a DSP.
Professional Installation Recommended
Professional installation is recommended to verify the connector, non-amplified system, IW SPK SIM requirement, power wiring and amplifier settings.
Not compatible with factory amplified or premium Toyota audio systems. Designed for compatible non-amplified factory audio systems only.





