Backup cam recommendations?

Camper sitting on the open tailgate and I miss my backup camera. Does anyone have an aftermarket camera they use regularly that they actually like? I'm not picky I just need decent video quality, easy to install, and preferably under $100. I'll be mounting it either on the top of the tailgate which is looking straight back or above the door on the camper.

 

What year is your truck/are you tying into factory system or have an aftermarket head unit? I installed an Auto-Vox of Amazon that was ~$50 or so, Natika is the other brand many go with. Cams/lenses are cheap/readily available for a good quality one and all get wired more or less the same as far as power, ground, trigger are concerned, tricky part is integrating into factory. If you have an aftermarket head unit with extra cam inputs it's super easy. If you're looking to effectively remove the factory cam in the tailgate, you could probably splice in a new cam on top of the tailgate or with a longer run of wire up to the top of your camper. A $50 cam and a $50 RCA screen is another option to DIY a system.