I got this XO-Vision LCD monitor with my new car.

Anyone can help me with my problems :

1. How to set the monitor to VGA as default mode ?
- sometimes when power on i can go to VGA, other times
it just stick to AV1, which I have to use the remote to
set it to VGA.

2. The monitor doesn't remember any settings after power-off.
- no standby voltage for it. meaning I have to redo settings
like brightness, contrast, etc on every power up.

The model only have a +12V acc input, GND, Auto-On.

All help are appreciated.