I'm not very good with electronics other than installing a head unit. My new stang has a TV in the passenger sun visor, it has no on or off switch but it is said to be hooked up. Anybody have any ideas?
There should be a power wire and a RCA running down the A pillar the RCA will plug in to the back of a double din head unit or will end ware ever the Xbox or ps was. The power wire should be connected to the remote turn on that comes out of the back of the head unit (it's a blue or blue/white wire) those are jump off points. I would start by taking off the A pillar covers and see what you have and ware it runs.
The a pillar is the two front parts of the car that hold the windscreen and hold the roof up. There is a plastic trim that covers them on the inside of the car that unsnaps / pulls off all the wires that run to the screens will go through the A pillar. I would pop them off and follow ware the wires go.