Connecting AUX cable- Need clarity

[TerminatorX5]

Originally Posted by mcfee03

I've just purchased yet another cable and still- nothing!

So I did your check.

Looks like I've got SW 10 02 42

Does that mean I'm not compatible? If so- what do I do to upgrade the firmware? My radio is SA661.

Here's the pic

I think SA661 does not mark the model/version of the radio, as BMW was using this option code from mid-90s, if no 80s, and the radios have evolved since then. The radio models are BM53, BM54, some other models, like CM24 (not sure about the name conventions though, I might be off by a letter or a number).

There is a fellow in UK who knows so much about these radios, you just do a google search for Boris and BMW radio, and his website should come up. There should be enough info about the versions of the hardware and firmware...

EDIT: correction - search for Baris

Carphonics - Car System Repairs and Upgrades