Factory fitted Blaupunkt 5 Cd changer has just given up the ghost. Radio unit operating ok but CD will not select when SRC button pressed. All that is happening is that each CD slot (numbers 1 to 5) is flashing. Managed to get all but 2 CD's ejected. Unit seems to have "locked up" apart from the flashing indications. Any ideas would be gratefully accepted as kids are doing my head in!!