Once in a while my radio would just turn off and my AC would turn on and go into AUTO AC mode.
Music would still play but I can't control the AC or Radio at all. (I can control the radio from the steering wheel)
It will randomly come back on and give me control again.

Anyone know what is wrong?
It sucks having AC blasting when it's already cold.

 

On a related note, my AC contols have stopped working. The AC is working, but none of the control buttons light up or work, so I'm stuck with a constant 75F.
The dealer told me they have seen this before, and that the radio controls the AC buttons and would need to be replaced at aournd $600. Does this make sense to anyone? I need to replace my working radio to fix the non-working AC controls?

 

There are many, many threads about his common problem. It usually means the circuit board that is shared by the radio and the AC controller is bad and requires replacement of the circuit board or the radio.

Another possibility is that the cabin temperature sensor tube attached to the panel under the steering wheel has become unplugged, but that shouldn't affect the radio.