I have the nav and CD's get jammed all the time in there. Then when you select RAD (Radio) over CD and then back to CD then you get a STOP message. What has worked for me and saved me a trip to the dealer is I leave it in CD mode and while holding down the eject button i gently insert another crappy no good CD in the slot about half way forcing it downward onto the top of the one in there already and wiggle it while forcing it downward onto the other one and after about three attempts or four the CD ejects. Its a pain in the a*$ but it works.