I guess this is actually a post for the head unit section but I know more people look in here so with that I have an Alpine cda-9830 head unit I've had for less than 6 months and last night I put a cd in and it didnt read the cd, says there isnt one in there, and won't eject it out. It's stuck in there and says it doesn't have a cd in. I have no idea what's wrong or what to do. Any help is greatly appreciated.