I have a 06 Pontiac Torrent suv and i just got some headrest tvs and they plug into the cigarette lighter socket which is all good but the socket stays on always... Even when the truck is off... I ordered a socket adapter with a on/off switch but didnt realize it light up so that wont work either cuz the light on that will always be on... Is there n e way of gettin the cigarette lighter socket to go off when the truck is off?