Chart 9 - CD Changer/Player Initializes But Does Not Operate

Chart 9 CD Changer/Player Initializes But Does Not Operate:

IMPORTANT: Before continuing with any diagnostics, if the CD changer/player does not operate or the display is incorrect on the radio, press the clear button with a sharp pointed object to restore normal operation. The clear button is located on the front face of the CD changer/player, just above the left side of the magazine load door.