my mach 460 is seriously screwed. it wont play CD's. One day i loaded a CD and thats when it all started. it never played. now when i press the CD button the radio goes quite for about 15 seconds then spits out "CD ERROR" and goes back to FM radio... so i try to eject any of the 6 cds in the unit and it instantly says CD ERROR... i already tried disconnecting the battery to reset it but no luck... anybody have any advice other then taking it to the dealership?