just followed instructions from a post in this forum i get no picture on d2 screen but when i connect 7000tv to headrest monitor i get picture. grounded pin 12 to 20 in green connector on 7000tv and also connected pins 1 and 2 in av-bus to a rca jack and pin 12 to 12v and i get no picture on the d2. So i'm thinking that my av-bus is not powering up someone please help me my truck is torn all apart pleeeeeeeeeaseeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!