[technician117]

I just picked up my 2013 M5. During the 12 hour drive home, I was able to learn most of the "electronics". One of the things I noticed after a while is that although the sound quality of the radio was good, the bass would go out. Then randomly it would come back on. At first I thought maybe it had something to do with the reception on the radio but when I was in areas I knew the reception was good and it still had no bass, I knew something was up. Anyone experience this? Sounds like an amp problem? Where is the amp located? I wonder if someone messed with it before and the connection is just loose? Probably wishful thinking.

Any input appreciated!