Look in your owner's manual. There's a picture, although its not a very good one. Lie down under the rear of your X on the side opposite the first aid kit. There's a blue cap plug with four connectors on it plugged into a receiver jack up just above the upper lip of the spare tire.

I had so much trouble yanking that blue protective cap off that I finally just grabbed the bitch with some lineman's pliers and ripped it out. I threw the cap away, plugged in the pigtail, and wired it to a permanent receiver hitch with a spring trap door that I bolted to the back bumper.

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Thanks,

kjw & the
"PNUT-MNM"