ISO adapter harness for Volkswagen, Vauxhall, Holden, Seat group vehicles with quadlock connectors at the back of the radio.

This adapter harness is designed to adapt from the original quadlock style connector in the dashboard to a standard aftermarket ISO connector to allow the fitting of a new radio.

The harness has a built in phantom powered Fakra to DIN antenna adapter.

This lead has a loose fly wire, this needs to be connected to an ignition power supply. The original radio in the car is turned on via a CANbus data signal so there is no ignition power supply in the vehicle's original connector.

The image below shows the adapter harness and the quadlock connector.

Harness Adaptors

Connect the head unit to the original radio connector without the need to cut any of the existing wiring.

TECHNICAL NOTE

• CAR AUDIO FITTING ACCESSORIES ARE SOLD WITH LIMITED INSTRUCTIONS. 
• SOME KNOWLEDGE OF CAR AUDIO INSTALLATION IS HELPFUL IN CASE A MODIFICATION IN SOME RARE CASES MAY BE NECESSARY OR NEEDED.

If in doubt please email us with your vehicle details and we will confirm what you require.

Please make sure that is the correct Wiring Harness for your car by firstly checking to see if your make, model and year of car is listed in the description. Secondly by checking to see if the Shape in the picture listed is the same as you have in your vehicle. We try to provide upto date information as possible. If you are unsure please contact our Customer Service and we will be happy to help you.