Find your serial number, pay a few dollars for the correct code online, wait out the 1-hour timer, and enter it once. Your radio will work perfectly again.
If you’ve just reconnected your car battery or installed a used Volkswagen or Seat radio, you might be staring at a screen that reads: "RCD 300 Code Calculator Blaupunktadds 1 13." Rcd 300 Code Calculator Blaupunktadds 1 13