Quote Originally Posted by Motortrend View Post
Likely the screen. Remember the screen is biggest power drain on a phone.
Quote Originally Posted by dr. d View Post
probably depends also on your HU's power requirement...
Malamang. And the GPS navigation system is also in the head unit. Since naka on position yung ignition, baka nagpupumilit siya mag acquire ng satellite signal eh blocked siya ng roof ng garage.