Sound System speaker access retrofit harness for Standard audio cars

This is a reproduction Sound System audio wiring harness that adds the missing trunk amp connector on  cars that originally came with radio only wiring and no door tweeters.  

NOTE 1: This harness only includes the following wiring from your trunk to your speakers and C302 accessory connector under your dash:

• 4 sets of twisted pair speaker outputs for each corner of your car
• the OEM trunk amp's chassis ground, remote turn on and power wiring.  The trunk amp wiring circuit supports 10A maximum and is suitable for running a small powered subwoofer or line output converter.

NOTE 2: If you would like to run an aftermarket amplifier in your trunk, you will also need a Sound System access harness, available separately. 

When ordering, please specify the production date of your radio only car.  

NOTE 3: Cars built before 8/89 have a fader control that requires a different wiring design, and you may need to order an additional wiring kit to bypass the common radio output grounds BMW designed into that wiring.