DIY In Dash GROM Audio Wiring Harness into BMWs

The herein picture shows pins stereo harness which connects your radio to car, you can easy find the harness at the back of the stereo after carefully remove radio from the dash pocket. It should have pins like shown on the following diagram.

You need to connect 3 wires coming out of GROM adapter’s vehicle specific cable marked with colors (black, red and orange). Then, depending on your harness you need to connect those wires to yourBMW stereo wires, please refer to the diagram again.

If you want to complete read about GROM Interface Installation into BMWcars, please refer to the following diy wiring harness of pdf filetype (source: indashpc.org).