CURT Custom Wiring provides everything you need to connect your vehicle's electrical system to a trailer. With plug-and-play connectors, a custom wiring harness easily integrates with your vehicle taillights to provide a standard trailer wiring connector, typically in the form of a 4-way flat. This custom wiring harness features a vehicle-specific design to perfectly fit certain years of the Toyota Tacoma. It uses OEM-compatible connectors to "T" into the vehicle's taillight assembly and provides a standard 4-way flat output to power the taillights, brake lights, and turn signals on your trailer. This custom wiring harness comes with a rubber dust cover. This cover keeps the connection points clean and well protected when the connector is not in use.• Plugs into existing OEM vehicle socket to provide a 4-way flat socket• Simple plug-and-play design eliminates the need for cutting or splicing• 4-way flat output connects taillights, brake lights, and turn signals• Equipped with taillight converter for vehicle-trailer compatibility• Constructed with SMT circuitry for better performance and durability• Dust cover included to keep connector clean when not in use• Vehicle battery connection required• Includes fuse holder, battery connection wiring, and other necessary wiring componentsCompatible Vehicles2016-2023 Toyota Tacoma Provides a standard 4-way flat output to power taillights, brake lights, & turn signals Dust cover included to keep connector clean when not in use | Curt 56349 Custom Wiring Harness, 4-Way Flat, Select Toyota Tacoma