My 2016 compass didn't come with a backup camera and I never used the one in previous nissan frontier because visibility was good but hard to judge distance sometimes in the compass. anyway I found a website that makes an aftermarket camera system and they claim no dealer programming needed. It comes with an OBD programming module but from the research I have done this option on the radio has to be turned on by a dealer. I guess the cheapest option is to buy a backup camera with wifi that transmits to your smartphone. I just like the idea of being able to use the display on the radio. any thoughts or advise?