- "PWR": Turns on/off the audio system power, turns off the sound;
- "MODE": selects between the operating modes of the system (AM. FM, CD, AUX)
- "SEEK": radio station/CD track selection, rewind;
- "VOLUME": increase/decrease the volume level.
Audio system lock
The audio system is blocked by setting a security code. To enter the code, press buttons (1), i (14) and the leftmost button (12) simultaneously. The display will show numbers from 1 to 6. Enter your four-digit code using buttons (12). When finished, press button (1). To unlock, press buttons (1), i (14) and the leftmost button (12) simultaneously. Enter your code using buttons (12) and press button (1). After ten incorrect attempts to enter the code, the process can only be repeated after 1 hour.
(The original article is on the website chevyman.ru)