AUDI A4 CD RADIO STEREO HEADUNIT ISO WIRING HARNESS LEAD ADAPTOR CT20VW04

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.

With vehicles that have the new Fakra or Quadlock connection there is no ignition switched 12v supply. This is usually required for aftermarket head units, and they won't power up with out this being connected

Fits vehicle models including: 

AUDI A4 2005 - 2015

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

Installation Instructions
Connect red cable to an ignition driven live.

Orange cable requires connection to illumination wire but only if the radio requires this for dimming purposes at night.

Blue wire needs to be connected to the Remote Antenna or ignition supply wire (if rem ant wire not available) on back of car stereo.