Hello everybody i have just joined and this is my first post. I have just bought a W203 X reg C320 it had a cd changer when new but one of the last owners has taken it out. In the glove box are two sets of leads one black block type with a red light and a white light at the end of it the other lead is a small black 3 pin female connector. I have been offered a cd changer part no-A2038703389 from a 2005 C200 and wondered if this will be compatable with the Audio 10 cassette head unit. If not can anyone tell me which unit i need as a straight plug in or where i could get a cheap one. Thanks in anticipation.