Open your downloaded calculator and enter the exact serial number.
The stereo has effectively become a brick.
Manufacturers often place anti-theft stickers in out-of-the-way spots. Check your glovebox , spare tire well , or trunk lid .
The days of needing a cracked calculator are over.
The free download software, which John later found out was called "Vw Radio Code Calculator," had a simple and user-friendly interface. It asked for the radio's serial number, which could be found on the radio's casing or on a sticker on the side of the radio. The software then generated a code based on the serial number.
: Some applications include a library of known serial-number/code pairs for older Blaupunkt and Grundig units. Google Play How to Use a Calculator