Been awhile since I posted. Got already 130k on my 3GS, never had an issue with audio until now.

A few days ago I push the **** to turn audio off, and now can't turn it back on. Have non-Nav system. The "nav" display works OK, I can get into climate control, Info, Setting, etc. When I turn on the car, message comes up that Bluetooth is connected. But I can't switch to radio or CD and can't control it from a steering wheel either. Before I take it down to dealership, wanted to ask if you guy can suggest anything? I checked all the fuses - all ok. Took the whole unit out of the dashboard, checked all the wire harness connectors in the back - all good. Also, disconnected Vaistech SLS and VML, just to make sure - still audio is off. Have no idea why I can't turn the audio back on

 

I had problems with my radio controls not responding or cutting in and out. It turned out to be a harness clip was slightly worn causing it to back out just enough to give a poor connection. I had previously checked it and thought it was on tight. I got so sick of the radio controls going in and out that I double checked and found the problem. I'd say check again just to make sure all your clips are functioning and it locks in tight.