Wireless Back Up Camera on Trailer

For anyone simply wanting a camera on the back of their vehicle (for hooking up) and not wanting to spend money, if you get a long OTG (on the go) cable, you can plug it into your Android tablet or phone and then plug the other end into any old point-and-shoot digital camera (like the one you don't use anymore that's collecting dust in the kitchen drawer), and it will show whatever the camera is pointing at on your Android device screen. It's a really cheap and easy way to get a hook-up camera for just the cost of the cable.