Turned on the jeep this morning, radio will not play. cant scroll through stations or toggle AM/FM so i know its more than just an issue with speakers. cd will not play. The CD player will take and eject a cd but will not play it. it will not switch tracks. the clock is on and working fine. Very weird... I have been through the obivous... knob is in the on position, fuses are all good.... Any ideas?