I have a 95 M3 with the bmw 6disc cd changer but whenever i try and use it, it either says "high temp" or "low temp". I was told that there is a little temp sensor that is inside the cd changer and it only costs $40 to change, is this true?? i hope it is. I know it is not just hot or cold becuase it has been saying that for the past 5 weeks. can anybody help and tell me where i can fix this. should i just take it back to BMW dealership??? thanks