Need help with trailer wiring...

[AngryBird]

Hey guys my 2011 has a class 4 hitch but only has a 4 pin trailer connector. It does appear to have the connection for the trailer brake controller but doesn't have a 7 pin connector in the back. I'm wondering if the wiring is there for the 7 pin in the rear? Maybe I just need to add in the Trailer Brake relay and Trailer Charge Relay and then add a 7 pin connector to the rear?

Thanks,

Joe

 

[JUST4FUN]

this might give a little help http://www.expeditionforum.com/f72/2000-expedition-tow-harness-question-16197/