Ok I got the z2 installed and everything works great except for that I can't get the camera to come show on the screen, I got the switch setup so the cam only comes on when I flip the it on, when I do flip the switch the Tex saying the images may be reversed show up but the screen is black like its not getting a signal.. I have it hooked to the brown rear view camera input but I did have to use a different RCA cable because the one that came with it wouldn't reach the dash so I'm actually using one side of a Audio RCA cable because as far as I know they are the same correct? Just trying to ge