[seanjsplitt]

I have an 08 528i which I've done an nbt retrofit with about a year and a half ago. Lately it's been acting funny. For example the only way I can adjust the volume during one of its episodes is to use the steering wheel button. And the dash buttons won't work. I'm thinking it might be a short in the wiring but I'm not sure. Also the audio volume will slightly adjust on its own at times. Anybody have any similar issues?
I'm trying to figure out a few possibilities before I take it to the shop.