I mounted a handle bar toggle switch (Amazon $20.00) wired straight to the battery (hot and ground). I got a retrofit back up camera (eBay $25,00). I mounted the camera under my license plate on my reflector. Used a ram ball/perch mount from my mirror for my monitor. Use the ram mount with the 9mm hole. I keep the monitor in a weatherproof GPS case. Route your wires real neat with loom and heat shrink. When you are done, you will notice the view on the monitor is reversed. The internet says cut the green wire in the camera loom. I did that and got a crazy rearview parking graphic. I repaired the green wire. I cut the white wire and there it was perfect. Just something to do on a 23 degree day with seven inches of snow. The mirrors are a joke compared to this screen. The job was less than $50.00. The job a lot of fun. I love having a reason to tear this bike apart.