mangomushroom

Hello everyone, I was having problems with my audio, getting sound out of only one speaker, the driver side middle door. so... I replaced the bose surround amp.

Then everything was working wonderfully until I started the engine and now the same problem with the new amp.

Any thoughts on what might be causing this problem? Is the amp shorting out? No fuses in the compartment have blown.

Or perhaps I need to do some VAG coding? Or something else?

Any feedback greatly appreciated... very frustrated! Was working great until I turned the key! So strange