Thanks, Homeboy. So you went in thru the existing platelight hole.
I dropped the bumper (pretty easy--just 11 screws) and found the existing trunk grommet passing the plate light wires and went in with those. I didn't want to drill the bumper cover, but didn't like seeing the wire going up to the plare light, so I ended up drilling a tiny hole with a grommet after all. :-( I put it in the center under the license plate. I can plastic weld or plug with a blind grommet if I remove the camera in the future.
Thanks for the help.
As for not reading the posts, I think somebody didn't read mine. I asked Homeboy because he didn't drill a hole. All other posts have a hole in the bumper cover, including post #1.