Wiring Question

[scottmeiners]

I just recently purchased a used 2009 expy with the standard towing package. I need to wire it for the 7 pin with brake controller. Is this a difficult thing to do? are there harneses already installed or am I going to need to run another power and brake wire to the rear of the truck? also, are the wire already under the dash anywhere? I'm not sure if I should just have ford wire it for me, but I would like to save some money.

Thanks for your help

 

[tonydiv]

Any Uhaul or rv place can do the wiring for you. It's mostly just plugging in the proper adapter harness.