I have a 12v connector / USB on the cigarette lighter that is by the dash. This is the one where both the AUX and USB ports are located directly in front of the shifter. Whenever I turn my vehicle off, this outlet is still providing power. The lighter inside the armrest doesn't do this. Is there a setting where I can tell it to stop pushing power once the vehicle is off? I'd like to keep my tablet connected to this and have the tablet shut off when it doesn't sense any more power. I have a 2014 Explorer XLT.