I bought a 12 volt 17 inch monitor with a flip down mount and it hangs just above the steering wheel, I replaced the back up camera with one from Rear View Safety and mounted a right side camera on the front for a better view that the side mirror will not see, I had to buy a second trigger box and separate the back and side view cameras with a toggle switch, the larger screen makes up for picture quality, picture could always be better but what I have now works for me, I did replace the stereo and the mirror cameras still go through the stereo display.
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