You mean which one to buy, or where to mount it?
I struggled with where to mount my Eclipse BEC-105 camera. Then it came to me.

I'm happy with the results. This camera is great, especially if you have a camper shell that hinders your view. It has a super wide angle and you can easily see pretty much everything behind you. And yes, the license plate light LED still works. It was a tight squeeze. I wired it so that it will come on whenever the truck is in reverse, and also it will come on when I'm driving forward if I flip the switch. So I can check on my trailer, if I'm pulling one, or I can check out a hot chick that's tailgating me.
Ooops. Don't run over the ladder.
