
You need to have the plug cut off the cable from a non working mg rover cd changer and the plugs from the loom for the CD changer from a BMW E46 (series 3) ….. the BMW loom plugs

I connected the wiring as per the chart i made which was based on a lot of Internet research. I cut the cables, stripped, twisted, soldered and insulated each joint.

After making up the cable I double checked the wiring with a continuity tester to make sure all the connections are correct.