I'm probably some far from you, at Quebec city, Canada.
Also, here are some more details...
Part number is "82 11 0 028 760". The part has been manufactured in 2003 (added on a 2000 M5 which has been used only at summer).
It would come with the cds cartridge (of course) and coaxial cable (for DSP system), but not the power/control wire (which could be already in every car, I don't know).