I have installed one of these to my car, there is power to it, it recognises when there is or isn't a disc in but no sound. The display shows MUTING 0 and when the SRC button is pressed it swaps between MP3 and FM but immediatley after the muting display comes up again. No other button apart from the eject, does anything. Also to compound matters I have recently moved from the UK to Trinidad, hence installing the unit to a new car, there is no Panasonic presence here so getting it to a dealer is pointless.
Any clues or advice apart from buy a better system would be greatly appreciated.