How do you enter VW jetta 2003 radio code?

To enter the radio code for a 2003 VW Jetta, first turn on the ignition and then the radio. The display will show "SAFE" or "LOCK." Use the preset buttons (1-4) to input the code, pressing the corresponding button for each digit. After entering the full code, press the "MODE" or "OK" button to confirm and unlock the radio.