[bmw325i]

Originally Posted by ctuna

Since there is not a Most Bus in your car adding a Fiber Cable that goes no where won't help. You need to change the Vo and modify the Rad File to turn off the Most Bus Ring and enable whatever options the Radio has.
You can get a coding cable for about 100 bucks US and do this yourself
if you are computer competent.
Go to the coding board and find out how.

http://www.e90post.com/forums/forumdisplay.php?f=368

Also read

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/showthread.php?t=343673
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://www.e90post.com/forums/attach...1&d=1209780865
http://www.bawarec.ru/manuals/3er/e9...3er-e90-12.pdf
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...4&d=1278871872

I know this is an old thread, but he does have a most bus now that he changed the headunit. Just needs to install a most access port and run the fiber optic cables to it.