You must pull the radio out of the center console using extraction tools or screwdrivers to see the label on the casing. Look for a 14-digit alphanumeric code starting with "VWZ" (e.g., VWZ1Z2F1234567).

When you search for “Volkswagen Radio Code Calculator Free Download,” the first page of Google returns a minefield. Here is a breakdown of what those links really lead to:

If you own a modern Volkswagen (2010+), the "Free Calculator" is almost certainly dead.