330xi nav screen

Hello everyone, I have a 2003 bmw 330xi with the navigation/audio system. Since yesterday I have not been able to turn on the audio portion. I can access navi/settings, etc. however I am unable to turn on the audio portion. I press the audio knob but nothing happens, as if the audio portion...

Priced to Sell. $200! I have the original screen from my 330xi, works great. I traded it out because I didn't listen closely enough when they told me what part I needed. :banghead: BMW part #6552-8-380-951, AT-Display. The box actually says remanufactured display but that's the one I...