335i Coupe e92 - no sound, bluetooth & idrive not functional

Hi all

I recently had an issue with my CD changer. I removed it and now don't have any sound at all - not even the bing for less than 3 degrees nor alert for PDC. The PDC still works, the radio will change channels but I cannot hear anything nor can I get the iDrive to work - it's stuck on radio. I noticed the Menu button for the iDrive isn't lit up.

Please can someone provide advise where to look - I tried looking at the fuses - all seems fine

Regards