Please Help... CD port issues
 

Have any of you experienced CD port in your X5 which is not recoginzed when your turn on the car. I added an AUX input device so that I could play my zune. I noticed sometimes when I start the car, my CD port is not recognized especially when I forget to turn off the radio before shut down. On other occassions, it does not matter if I had shut the radio down, on start up, it still doesn't recognize the CD port. Once you remove the original CD changer, does the car need to reprogrammed?