aljodoro

I am trying to wire up my trailer hitch on my 06. It has two plugs in the back. One a four pin and the other a three pin. There does not appear to be any power to those plugs. It looks like I need two relays in the engine compartment and then a relay/convertor that is located back by the rear tail light.

My questions are:
1. Ar ethere any mre relays than I listed that I need. I think I need three.
2. Where do I find the rear relay convertor? what panel do I need to take off or how do I find it.

Thanks so much for the help. Al