Ford C-max 6000 radio code needed

Hi i have just bought a new Ford C-max and i wanted the optional sony 6 CD radio so the garage took out the old ford 6000 radio expecting the new sony one to arrive before the delivery of my car to me. unfortunatly it has not worked out that way and now i have my car with the old ford 6000 radio inside which is asking me for the code. which i dont have.

can anyone help me

the only number i have is the one the radio shows me before the rado asks for the code and that is as follows. :-

WF0MXXGCDM3U8476

that is the number the radio is displaying me as being the vehical ID number. dont know if that will help.

Many thanks Brett:splease