Plug And Play Harness | etrailer The TowDaddy wiring system takes the hassle out of wiring your towed car. Single-block diode plugs directly into your vehicle's tail lights. Features LED diagnostics, a brake light relay Custom, plug-and-play connectors plug into your vehicle's factory wiring harness behind the tail lights No cutting, splicing or tapping required Built-in, single-block diode prevents electrical feedback Light Bar Wiring Kit - harborfreight This convenient Light Bar Wiring Kit features a water-resistant quick connector for easy plug-and-play installation. The light bar wiring harness has two copper coated ring terminals for connection to your vehicle's battery, a relay switch and fuses.
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