I have a 2005 Z-71 1500 with the tape/cd radio. I've only had the truck 2 days. The stereo has been fine until today. I ejected a CD today, and when I tried to put in another one it wouldn't pull it in. I've tried with CD's I've bought, and CD's I've burnt. Was wondering if there is some way to fix this or if I need to get a new factory stereo. If this is the case, what do I do about the access/encryption codes if I get a used one?