Handy tip
https://www.the75andztclub.co.uk/for...d.php?t=183362
Or
Recoding Procedure
Iovox Head units (CD 80 and CR 80)
1. Whist the unit is plugged in, but in off mode, press and hold i for 15 seconds.
2. Press right button
3. Turn unit on
4. Input desired code (any)
5. Press and hold # 5 for five seconds
6. Press right button
7. Open face and depress reset button
8. Turn unit on and the new code is displayed
9. Press and hold # 6 when code is ready for storing
Or