It's the plug below the rear light and above the bumper.

 

somebody added?? cant see anything in your pix..

 

It is a bolt access point

 

Bolt to what?

 

???????

How about the bolt that holds the plastic fender extension in place.

 

got it thanks

 

Just don't think I'll have enough depth to mount these there.

 

Definitely not enough room there. This is my set up: https://drive.google.com/open?id=0Bw...WloZXNleFV1dTg

I used regular led pods are mounted with existing bolts. I had to drill out the bracket for the larger bumper bolts but that was pretty easy. These are where I put them: https://drive.google.com/open?id=0Bw...GZIR1RZbkdKZ2M
I wired them to my controller in my engine bay so I had to run wires underneath but you could easily splice them into the reverse lights on the trailer harness so that they would come on automatically.

 

I've installed backup lights like that before but get knocked off I may have to mount to the top of the bumper and not use the flush mount style. Which brand lights did you use and what is the amperage?

 

I'd be careful not to block the door ��. Mine are Kawell 18w LED pods. These are spot beams because I used them on the front previously but they do the job nicely. Been on for a month and haven't failed me yet. Been through mud, water, and hit with the hose, no moisture inside the light. Best $20 I've spent.