How to find the radio code on a 1999 Volkswagon pat?

It is not free- unless you beg and plead with the service manager. Go to another dealer, they may be less than $150. No, the code is not in the wheel well, that is the build sheet. It is not in the owner's manual either. Besides, that code is specific to the radio- the seller on Ebay should have given you the code. Also, how does a radio correlate with a smog inspection? I can understand aftermarket exhaust....