This adaptor will enable you to replace your factory fitted head unit with an aftermarket model.

It converts the cars power and speaker plug into a standard ISO connection, suitable for all aftermarket head units (Alpine, Clarion, JVC, Kenwood, Pioneer, Sony etc).

You simply plug one end of the adaptor into your cars original wiring harness, and the other end into the new head unit. No cutting of wires is necessary.

Fits vehicle models including:

Audi A3 : Sep 2005 onwards (Quadlock Fully Amplified)


Audi A4 : Sep 2005 onwards (Quadlock Fully Amplified)

S3: 2007 Onwards (Full BOSE Quadlock Systems)

The above list of vehicles is a general guide and cannot be guaranteed in all cases.

To ensure compatibility, we recommend that the vehicle connector pictured above is compared to the actual connector on your vehicle