Greetings, I had my Z1 installed last week in our RV,& I have a back up camera,.& I was going over the bypass instructions I printed from this site with the installer, & he said that they used a toggle switch mounted on the dash, nice looking with a little blue light when on, now I can, by hitting that toggle switch, anytime ,view the back up camera, it doesn't have to be in reverse, or any other mode, & going down the road, I can view our tow car full screen instead of split screen, which is real nice to keep an eye on the tow car ,pretty slick! I can't wait to get out on