car radio code

hello to all. i am new to this site having just got my first ever nissan. trouble is that the radio doesn;t work and no one knows the code to get it going.
is there anyone out there who can help. the radio serial number is BP2773P9902816 and the make is a blaupunkt.
i need my music so if anyone has any ideas then let me know
thanks
sallyann http://www.micra.org.uk/images/smilies/laugh.gif
 
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