i called Chevy's service department which was very helpful and they explained to me that the CD player was most likely messing up because the AC Delco battery was pretty much drained. He advised me to buy a new battery and that would set the CD player back to normal (ant-theft...low battery) something like that. Well i put a new Optima Red battery in my car and my CD player is working fine now. So for anybody else that this might happen to, check ur battery u might need a new one.