After a few seconds, it may show or require you to press a specific button combination (like MODE + SCAN ) to start entry.
To prevent radio code loss or theft:
Found on the radio's metal casing; you must pull the radio out of the dash to see it. On-Screen: vw radio codes list
If you share your (not expecting a code, just for identification), I can tell you exactly where to look or which form to fill out on a legitimate retrieval site. After a few seconds, it may show or