In 2014, the Department of Transportation issued a rule that required backup cameras in all vehicles that weigh less than 10,000 pounds by May 2018. But what if you have an older car?

There are wireless rear view cameras that plug into your smartphone. They have a small battery and are a completely self-contained unit. A wireless smartphone option costs $22 to $100.

If you're not ready to invest in a new car, you can buy and install an aftermarket camera in your older car. Some dash cam sets have a screen that straps over your existing rear view mirror.

Consumer Reports suggests if you have any doubts, consider professional installation. Installation for hard-wiring rear view camera retrofit kits range from 99 to 130-dollars.