I'm trying to install a Prodigy on my 2003 Suburban. I have the Tekonsha (3015P) GM brake control harness for the 2003-2005 model year, but the plug under the dash by the parking brake pedal does not match up with the plug on the wiring harness, am I looking in the wrong place? I don't think this truck has ever towed a trailer, but it does have the factory tow package.
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