How do you fix CD changer in a ford expedition 1998?

To fix the CD changer in a 1998 Ford Expedition, first check the fuses related to the audio system and replace any blown fuses. If the changer is not reading CDs, examine the magazine for jams or misalignments and ensure the CDs are clean and undamaged. You may also need to reset the audio system by disconnecting the battery for a few minutes. If the issue persists, consider consulting a professional or replacing the unit.