Unable to Select CD Changer
Unable to select CD changer1. Turn the ignition switch ON (II).
Does the XM radio work?
YES - Substitute a known-good CD changer. If the XM radio still does network, substitute a known-good XM receiver.
NO - If the vehicle has a navigation system, go to system troubleshooting. If the vehicle does not have a navigation system, substitute a known-good CD changer. If the XM radio still does not work, substitute a known-good XM receiver.