[BRG75]

With reference to my post Number 4, could you tell me the part number of the loom that you have please.


It's equivalent for the Harmony to Alpine CD is VUL 100310. which was the factory fit cable.

I believe that your loom should have:-

1, BMW/MGR connector from the car.

ISO Connectors
2, Brown 8 way connector
3, Grey 8 way connector
4, Blue part of the multi coloured connector (or all 3 parts)

MGR specific
5, A Black 10 way connector, with 8 wires, 2 not installed.

This last plug should go into the Alpine Interface, R75S-ALP

The interface then goes into the CD Changer, with an 8 pin round DIN plug.

Alternatively, you may have VUL 100330, which was a dealer fit catch all cable, and will have a few other connectors, in addition to the 5 mentioned above.

Many Thanks.

Mike