Sony rear camera questions

We have a Sony rear and side view camera system that came installed on our rig. The picture from the rear only is distorted (picture below). The side cams are fine so I have to guess the rear cam or a connection to it is bad.

I took a look at the connection on the camera and there does not appear to be a plug on the camera. When disconnecting what looks like a plug there are just small wired going directly in.

I got to the back of the monitor and there is one video plug and one audio for the mic in the rear cam. Since there are three cams, where do all the wires meet? Something must be connected to the turn signals because the side cams come on automatically when they are used. I also will assume there is some type of plug like the RCAs behind the monitor somewhere in the rear.

TIA for any help.
EDIT: I found out the thing I am looking for is called a video switcher. Now to figure out where it is hidden.

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Mark & Nancy
2004 Winnebago Vectra 40KD
Kenzie and Shep dogs Toad 94 Geo Tracker (The clown car)

Source: http://www.irv2.com/forums/f258/sony-rear-camera-questions-143302.html

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