Connecting trailer brakes to 2005 Lincoln Navigator with tow package?

I'm planning a camping trip, only about a 25 mile drive with a 26' camper, hauling it with my Navigator. The weight of the camper, loaded, is below my tow capacity, so no worries there. My tow package came with a 7 pin connector separate from a 4 pin connector. The camper does have brakes on it and uses the 7 pin connector.

What I'm trying to figure out is if, since it came with the heavy duty tow package, if I will need to wire in a brake controller, or if it is all included from the factory. Upon speaking with a ford dealer, this vehicle came with every option available, the tow package is not aftermarket, nor are any of the connectors. The concern I have is there's one downhill slope headed toward the campsite, though in the past I have just downshifted going downhill. The rest of the trip though is flat, nothing much in hills. Anybody have experience with this?

The factory tow package/7 pin connector still requires an add-on brake controller if needed for your particular towing setup/trailer brakes. The factory controller port connector is prewired to the the 7 pin connector in the back of the truck and the port connector is located under the dash above the gas pedal behind the OBD-II diagnostic port… You'll likely need an adapter harness to plug the controller into the factory port as some brands differ in plug styles. A local trailer hitch installer or Ford/Lincoln dealer can provide the controller setup and installation if needed… Most are mounted under the dash or front dash area within easy reach.

Related info on controllers/wiring…
http://www.etrailer.com/question-8082.html
http://www.etrailer.com/question-20796.html

Owners manual… Page 280… Info on trailer brakes… Wiring kit.
"Trailer towing (optionally equipped trailer tow package):
The optional trailer tow package includes heavy duty trailer tow wiring.
Both a Class I (4-pin) and IV (7-pin) trailer electrical connector are
provided. Under the instrument panel a electrical connector is provided
for a customer supplied aftermarket electronic brake controller. For
installing a customer supplied electronic brake controller, a electrical
jumper harness and trailer tow electrical instructions are included with
the optional trailer tow package.
The kit containing a electrical jumper and trailer tow electrical
instructions may be purchased from any Ford, Lincoln, or Mercury
dealership (Part number 4L1Z-14A348-AA)"
http://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/05navog1e.pdf
http://www.ford-trucks.com/forums/1109923-wiring-a-trailer-tow-battery.html

If your truck had a brake controller installed, you'd know it. It would be a quite obvious addition to your dash board. MOST factory towing packages include the wiring harness, but not the controller itself.