Audi radio code from the serial number

Gamma, Delta and Beta cassette radios

1. Switch the radio on. The display reads SAFE, and on most units changes to 1000 by itself after a few seconds.
2. If it stays on SAFE, hold the two keys printed on your radio card until 1000 appears: FM + AM on a Gamma, FM 1/2 + DX on a Delta or Gamma 3. Let go as soon as 1000 shows.
3. Set the four digits with preset buttons 1 2 3 4.
4. Hold the same two keys again until SAFE flashes. The frequency appears and the radio plays.

Chorus, Concert and Symphony, first and second generation

1. Switch the radio on and wait for SAFE.
2. Hold SCAN + RDS together until 1000 appears, then release. Blaupunkt-built units use TP + RDS instead; a Symphony may use AS + RDS. Use the pair your face has. Do not press them again now, or the radio takes 1000 as the code.
3. Set the four digits with preset buttons 1 2 3 4.
4. Hold the same two keys again until SAFE shows briefly. The radio unlocks and plays.

Chorus II+, Concert II+ and Symphony II+

1. Switch the radio on. The display reads SAFE, then CODE and 1000 on its own; nothing has to be held.
2. Set the four digits with preset buttons 1 2 3 4.
3. Confirm. On a Chorus II+ press ENTER, the key beside the display. On a Concert II+ or Symphony II+ press and hold the right-hand knob (marked SCAN) for about two seconds until the display changes.
4. The radio unlocks. If SAFE comes back, check the digits and try once more; the display shows how many attempts you have left.

Chorus, Concert and Symphony, third generation

These radios are paired to the car, so a flat battery does not lock them. The code is asked for when the unit has been fitted to another car, or after a repair.

1. Switch on. The screen in the dash shows the code prompt with four empty positions.
2. Turn the large knob to the first digit and press it to confirm. Repeat for the other three.
3. Highlight OK and press the knob. The radio restarts and plays.

If the unit came from another Audi and asks for the code every time the ignition is switched on, the car still has component protection active. A dealer or a workshop with online diagnostics clears it; the code itself does not change.

RNS-E, RNS-D and Navigation BNS 5.0

1. Switch on. The PIN entry screen appears with a dial of digits; your serial (AUZBZ7…) is written at the bottom.
2. Turn the large knob to a digit and press it to enter. Do this for all four digits.
3. Move to OK and press the knob. The map or the radio comes back.

On an RNS-E that drops back to the PIN screen after a correct code, hold SETUP + RADIO until the unit restarts, then enter the code again. The screen also shows the attempts remaining.