Adding a Backup Camera

Backup cameras are becoming ubiquitous: they are required on new vehicles from the 2018 model-year or later. On older cars, they were a luxury, but it's possible to modify a used car to have a backup camera if you want one for a car that didn't have it originally.
There are two kinds of aftermarket backup camera systems. If you already have a dashboard display, then the camera itself with the proper software will cost less than thirty dollars. For a vehicle that does not have a screen, then a kit with the camera and a display for…