I'm not sure but I would think a Furrion plug would not fit another brand. Anyway, at least you have a power source if you get a different brand.
My wife has been wanting me to get an observation/backup camera for our fifth wheel ever since we got rid of the motorhome in 2012. My Ford has the camera towing system but didn't come with the backup camera for the trailer. After looking at it closely to get it and a conversion kit to be able to hook it up inside the bed I would be spending close to $600 to have a camera that only worked in reverse.
I'm going to try one of the cheaper wireless models like 2edgesword suggested. If it doesn't work I'll send it back to Amazon and move up in price till I find one that does.