3SERIES CD RADIO STEREO HEADUNIT ISO WIRING HARNESS LEAD ADAPTOR CT20BM04 

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: 

3 SERIES 1998 - 2005

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