When I put a cd in the disc changer in the trunk and then go to play the cd, it wont load. Once I hit the disc 1 button for example, the screen just blinks and then nothing happens. If I don't have any other cds in it will cycle through displaying that there is no cd in each spot like it should, but once it gets to a spot with a cd in it it wont play or load it. I have been trying it with a normal cd not a burnt one. Any suggestions?