Valid serials often start with BP , C7 , CM , GM , VWZ , or AUZ followed by a string of numbers (e.g., BP026318472532).
Once you have your serial number, follow these steps to generate your code: Blaupunkt Radio Code Calculator Online Free
Before you can use a calculator, you need the unique 14-digit serial number of your radio. Valid serials often start with BP , C7