Trailer Wiring Harness Installation - 2000 Mercury Grand Marquis Video

How to Install a Trailer Wiring Harness on a 2000 Mercury Grand Marquis

Today on our 2000 Mercury Grand Marquis we'll be installing the Tow Ready Circuit Protected Module Light with Four-Pole Harness, part number 119179KIT. To begin our install we'll first need to hook up our new module light and wiring harness. To do that we'll need to locate the manufacturer's wiring that runs to the rear taillights. To do this we'll go ahead and remove the four push pin fasteners… see more >