Hi everyone, I just purchased a 2000 Sonata with a CD player installed. The problem is about every other day the CD player console says "ER2". The music may stop or keep playing. Sometimes the cd won't eject until the car is turned off and back on. Then the eject button works. Is this a mechanical problem? Can I clean the inside tray? I don't know how to get the face plate off to get inside? Is there help on how to open it? Maybe I should get a new CD player. Are they hard to install? Thanks for the help, Ed