Anything the goes bad in the Most Bus ring will break the loop and cause
everything else to look bad because it won't be able to communicate.
I would think you might just be able to bypass the module to get things
working .
http://www.google.com/url?sa=t&rct=j...41524429,d.cGE
You need a Most Bus jumper but where to get one I don't know.
You may or may not need programming to remove the sat radio
form the VO list.
http://www.e90post.com/forums/attach...2&d=1260829447
Or you might not even need a jumper if you can reroute the In and Out signals to bypass the satellite module it looks like its
adjacent to the phone module TCU in and older car.
You might be able to get away with just moving the In on the satellite module to the In on the TCU.