I have tried to search for existing topics and read every thread on this but still have no clear answer. Just purchased a 2007 Escalade. It has the one rear monitor flip down screen. I have been trying to plug in PS3 to the rear input using the PS3 rca. Nothing is coming over the monitor or over the speakers. I switched the input on the head unit to aux rear and I have powered on the rear unit (back of the center console) there is nothing on the screen at all. Is it something I am.doing wrong? Regardless of the PS3 system, it should be displaying anything input to those rcs inputs on the screen correct? Any advice would be greatly appreciated. If this is a repost, I am sorry.