Today on our 2012 Lincoln MKZ, we'll be installing the Tow Ready Custom Fit Vehicle Wiring Harness, part number 119179KIT. To begin our install, we'll first need to access the wiring behind the taillight assemblies. To do this, we'll start by removing the rear cargo liner and spare tire cover. Then we'll need to remove the rear threshold. There are six fasteners that we'll need to remove. These… see more >