As far as I know, AF's don't have a wire harness, instead, they use a plug on the camper, which is a 6 pin plug. AF supplies a connector with pigtail which mates to the conenctor, then a customer, or dealer will put a plug on the other end of the pigtail, for whatever is needed to mate to the truck - usually a 7 pin trailer style connector. THis is how my 2010 is set up.
This may have changed on new models - I can't recall for sure when I was looking at new AFs a few weeks ago.
My truck had a camper pre-wire package. The dealer installed a 7 pin trailer plug on the set of wires, then teh pigtail from the camper plugs in to it.