Hi all, I decided to install in my yaris a new carplayer  I choosed this one http://www.witson.com/en/displayproduct.html?proID=102907537 Everything is working fine except the rear camera  For the camera, I have 4 cables: - black for video+ - white for video- - red for power+ - grey for power- Between red and grey I have 6v I have connected a cable from the rear light to the carplayer to switch in rear mode, it works. I also use the cable t