Installation instructions were pretty straight forward. I did tap into the rear turn signal in case I needed to use the hazards on the trailer if the car is disabled on the side of the road. Instructions says it's optional, but highly recommend it. You just never know.
Here's the link to the instructions for the hitch and harness install.
https://www.google.com/url?sa=t&rct=...tceHbEtTGn2V5C
I used a standard mount for the 7 pin plug and I like how it's hidden underneath. I had to mess with the angle to make sure you can plug into it, but it's completely out of view.