Hi everyone, I have a stock radio (Delta tape deck) that came with my '98 Audi A4 purchase that I'd like to sell but I do not have the code for it after it's been removed from the vehicle. (bought the car used) My question is, can I still sell it without the code and the person buying it can retreive a code from the manufacturers? How can I go about selling a stock radio without a code? Any help would be greatly appreciated. Thanks.