sattman,
COMBOX' are not that readily available aftermarket. You can get one from the dealer or one of the advertisers here specific to your MY and build month. REALOEM.com can get you the part number. There are two types. a Media only (no telematic services like calls to BMW dealership when faults occur or placing service requests), and the COMBOX Media/Telematic Combo, (which mirrors OEM functions). Both require wiring changes in the plugs behind the rear seat where it gets installed. Coding is easy by adding the proper vehicle order (aka VO), and telling the CIC there is a COMBOX present.
Patryk at
info@bimmer-tech.net or Alex at
info@bimmerretrofit.com, can get either for you. I have the Media only version, as the Media/Telematic was not available at the time, and giving up the telematic functions were of no loss to me. If I need service,I call the del are the old fashioned way, by phone for an appointment.
You may find one on EBay, but they are hard to come by. Hope this helps