Hi Ber, you will have to remove the radio from the dash 4 small screwdrivers or the ends of a wire coat hanger into the four holes in the front face of the radio, a bit of jiggling and it will come out, the serial number should be on a couple of stickers and engraved into the side (M654321) you might even find the code written on one of the stickers if not re-post your code request with the serial number and you will receive the code
nigel
May 2008