Well that explains it. You took the MP3 badging off the head unit. It doesn't play MP3's cause it doesn't say it can. Put the badging back on the head unit and it will probably play. Hahahaha, sounds like something John Madden would say ah guys. No seriously dude. Try reburning that CD it could have gotten corrupt somehow. I have an 07 and I've burnt some music that I downloaded off of Imesh, it plays fine.