MMI works but no sound B/O system

[B8bully]

i have a 2009 audi a4 b8 radio was working fine and battery died one day and radio stopped working ever since. i can mute unmute swtich stations use navi but there is no sound. i bought a fiber optic loop and tried the AMI and the satellite radio reciver and still no sound not sure if im using it correctly or if the AMI and reciver are fine and i should be looking else where. can it be the BCM? been radioless for months its driving me crazy lol someone please help!!! thanks in advance

[Bobby Kinstle]

i have a 2009 audi a4 b8 radio was working fine and battery died one day and radio stopped working ever since. i can mute unmute swtich stations use navi but there is no sound. i bought a fiber optic loop and tried the AMI and the satellite radio reciver and still no sound not sure if im using it correctly or if the AMI and reciver are fine and i should be looking else where. can it be the BCM? been radioless for months its driving me crazy lol someone please help!!! thanks in advance

Have you run a scan tool since replacing the battery? There might be an error code that prevents it from turning on.

[B8bully]

Have you run a scan tool since replacing the battery? There might be an error code that prevents it from turning on.

I have OBEeleven and I didn't replace my battery I just charged it back up and been fine ever since but I'm just not getting any sound now and I've check every single last fuse one by one. Not sure what else to do or check I don't have Vagcom so I can't go into better details of what codes and problems it says