Can you please provide more info on your experiences with the system. I just looked at several YouTube videos and it appears that at least some of the cameras provide a reversed image output. That is, when the vehicle equipped with the system was parking, the image shown on the screen of the car in front (or back, not sure which was the case), showed the license plate and the numbers/letters were backwards. Also, articles I read discussing the system indicate that the video signal is provided via a composite signal connector, which is a low resolution image.
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Looking at Rydeen's webpage for the system, they say "4CH HD Cameras". While they do not say that HD stands for high definition, I think the implication is that the cameras are high definition cameras, which does not appear to be the case if they output a composite signal with a maximum resolution of 580 lines. I believe a high definition image requires a minimum of 720 lines of resolution (at least in the television industry).
It's a neat system, but I wonder just how sharp the image is (the YouTube images are not near the quality of Tesla's backup camera on the 17 inch touchscreen, but I don't know whether that is in fact true or just the quality of the recording). Can you please provide your feedback on this question.
How are the cameras attached to the side view mirrors? How were the wires run? If you have the electrically folding mirrors, can the repetitive moving of the mirrors cause an issue with the calibration of the cameras? Any additional info you can provide would be appreciated.