Originally Posted by dryicerx
Odd behavior... sounds like a bug with the iDrive software as per PINeely's comment (did you have your idrive software upgraded when this happened).
Have you tried pairing it up with bluetooth to stream the audio, and simply having it plugged in to charge it?
iDrive software was not updated prior to the issue. It just happened one day about halfway to work.
Never tried Bluetooth streaming as I thought you could only do this with the 2011 models and the i4S.