See also:

Variable voltage control system
CAUTION ● Do not ground accessories directly to the battery terminal. Doing so will bypass the variable voltage control system and the vehicle battery may not charge completely. ● ...

Audio main operation
POWER/VOLUME control: Place the ignition switch in the ACC or ON position. Press the PWR button while the system is off to call up the mode (radio, CD or AUX) that was playing immediately befor ...

Safety note
- Do not disassemble or modify this system. If you do, it may result in accidents, fire, or electric shock. - Do not use this system if you notice any abnormality, such as a frozen screen ...