Entry point and body grommet for trailer wiring harness
 

I am looking to install a hitch mounted wiring harness.

I have two questions

1. Which entry point is the best to use for the trailer wire harness?
2. What is the best method to seal the entry point?

Re: Entry point and body grommet for trailer wiring harness
 

Most people, myself included, store the wire harness in the side cover panel (where the jack is stored). We spliced into the wiring in that area to make the harness work, so keeping it in there make sense too. And when we use it, we just run it out the tail gate.

Re: Entry point and body grommet for trailer wiring harness
 

I could never find a source for a grommet so I ran my wiring through
the existing grommet next to the jack for the signal wiring. From
there it runs towards the left rear light assembly and then down
to the hitch.