[rtshepp]

Help..., disconnected my professional radio to check vent motors in dash. When plugged radio back in, no longer have sound or aux input. Did the ecu forget my radio? How do I recode? Its the same radio, I've only disconnected it and reconnected it. It's this normal?. 2007 335i.

[ctuna]

There is no need to recode there are no security codes.
There is a fuse in the back of the radio but I suspect
you don't have the connector properly seated.
The connector must be all the way down before you throw
the lever.
Make sure there are no bent pins.

[rtshepp]

Thanks but no luck.. Checked fuses, connection and pins bit still no audio or aux input. Display is normal and it seems to be receiving radio stations. Very strange

[ctuna]

Now you have to figure which system and options you have.
Do you have the Logic 7 or Hi Fi system ?
Do you have bluetooth phone?
Did you plug in the most bus cable if you have
Logic 7 or did it get pushed back in the connector.

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.bmwmotorsports.org/pdf/e7...%20Systems.pdf
http://www.e90post.com/forums/showthread.php?t=343673
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/attach...1&d=1209780865
http://www.e90post.com/forums/showthread.php?t=641323
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...3&d=1169133185
http://www.bmwmotorsports.org/BMW_docs/mostbus.pdf
http://www.e90post.com/forums/attach...4&d=1278871872

Sound goes through the Most Bus in logic 7 systems but can also be stopped by a bluetooth
or Sirius module . The aux comes from the bluetooth module in most cars equipped with bluetooth.

[rtshepp]

Thanks, extremely helpful! Now I've got some reading and some checking to do. I do have bluetooth and the most fiber optic cable so I'll work on that route of possible issues.