Not sure how your cab came from the factory, but mine was prewired. There was a connector behind a blank in the ceiling and wires taped (hidden) on the upper rear blinker wires. With a the pricey Kubota plug-n-play switch and a pair of Maxxima MWL-42 lights it was easy. To connect the lights, i cut the factory ends off and butt spliced them. They miuount on a couple tabs that bolted onto the existing brackets .