electrical conrrol tow wires under dash

[micacrumb]

I own a 2007 crescendo and am going to tow a trailer with ele. brakes. I'm trying to find the plug in for the controler, or the wires under the dash. I would like as much info anyone can give.
Thanks Mike

[rescue7]

It should be near steering column, mine was marked and in a wrapped bundle pigtail about 2 feet long. Has a freightliner square plug on the end

[micacrumb]

thanks will check it out