Privacy I am not worried about nor speed in a big RV. What I am worried about is those that takes us for granted and cut us off or rear end us. I have been driving big trucks for 30+ years in the Army and now in a 36' RV. After heavy congestion last weekend and almost taking out Audi that came up in my blind spot to only get right on the bumper of the car in front of me to only hit them, and then tried to blame it on me with the cop did I realize that its time for a camera. My ultimate goal is to find one system that can handle four cameras at once since I have a tow behind as well. That Rydeen system looks very promising thirdrock44!