Question about 2005 Ford Excursion

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Trying to plug in an aftermarket trailer brake controller to hte factory harness under the dash on a 2005 excursion - can't find the plug I understand if the vehicle has a factory wired 7 prong this plug is there from the factory. Need help finding. I have most of dash disassembled.

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Electric Brake Harness


Do you know it the Excursion came with a factory towing package option when new? If it did, it's probably located under the vehicle at the rear where the trailer hitch is (or would be installed). countrycurt0

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