2004 gmc truck cd player clicks when l try to eject the cd. Cd still plays fine but wont eject. Any Ideas?

take out the CD player from the dash. manually do it.

STICK NOTHING IN THERE, DONT USE TWEEZERS, DONT TOUCH ANYTHING SHINY
or you will break everything, sounds like you got a nice ride so keep it that way

Is truck under warranty??? If so take it to dealer. Your truck is only 4 years old, so even if it is not under warranty, it probably is worth taking it to the dealer, you do not want to start taking radio/dash apart, let an expert do it.

You need to take it to nearest GMC dealer, the radio needs to be reprogrammed,there is a bulletin for this concern from GM for updated calibration. should be no more than 1/2 hour labor charge for programming. (copy/paste bulletin)

CD Player Long Load-to-Play Time, Error Message, CD Does Not Return to Previous Track, CD Does Not Play, CD Does Not Eject, CD Stuck in Player, Radio Will Not Accept CD (Reprogram Radio)