*sigh* well I tried disconnecting the battery and resetting the cd multi changer, but unfortunately its still locked.
actually it was quite amusing in a way, I searched through all the documentation and found the radio code. Then I put the documents away, disconnected the battery, waited and reconnected it. Then I realised I had no idea how to enter the number
so I had to get the documentation out again to find out how to do that
Anyway it hasn't worked so does anyone know how to extract the actual cd player so that I can get at the CD's?