These days, it's just common sense to have a backup camera. Not only do they help you park and reverse the vehicle more accurately, they help in preventing an accident. With the help of a backup camera, the blind zone is eliminated.
However, installing a camera on your vehicle can be a pain without the right equipment. There are some cameras that require you to run wires and cables from the back of your car while some requires frequent recharging. This is why in the recent years, many of the best backup cameras are wireless and solar-powered, like the Auto-Vox Solar 1-P Wireless Backup Camera.