Kits Are Equipped With OEM Connectors For A Perfect, Weather-Tight Fit. No Cutting, or Splicing into stock harness! Unplug your vehicle’s factory wiring harness and plug in our new vehicle wiring kit. That’s how easy wiring is with a Plug-In-Simple!® wiring kit, featuring Exact Fit OEM connectors for a perfect, weather-tight fit! These kits provide a 4-Wire Flat connector that you can cut off & wire in your 4 Pin Round - Tow Light Plug.