Light Accessories and Wiring

Complete your lighting project with the right wiring and accessories. This collection brings together the harnesses, relays, switches, connectors, and hardware you need to install, upgrade, or repair automotive lights safely and reliably. Whether you’re wiring a set of off-road LEDs or refreshing factory fog lights, we’ve sourced components that stand up to underhood heat, vibration, and weather.

Every part is built for easy installation and long-term durability:

  • Wiring harnesses – pre-wired kits with fuse protection
  • Relays and switches – handle higher current loads without overloading stock circuits
  • Connectors and terminals – secure, weather-resistant connections
  • Mounting brackets and hardware – position lights exactly where you need them
  • Bulbs and adapters – upgrade output with factory-fit replacements

No matter the vehicle, you’ll find the bits and pieces that make a clean, professional installation possible.

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Diode Dynamics DD3012 Tail as Turn signal conversion module for 2015-2021 Subaru WRX and WRX STI.

$79.95

In stock
Diode Dynamics DD3007 Always-On wiring module with OEM-style connectors for 2013-2016 Scion FR-S.

$59.95

In stock
Baja Designs Squadron Dual Sport Dimmer harness with high/low beam 4 percent and 100 percent output settings.

$17.95

Low in stock
Baja Designs 660004 Squadron 2.0 small splitter harness with 4-pin Deutsch connectors for dual lighting.

$14.95

In stock
Baja Designs Squadron 2.0 55-inch splitter harness featuring 4-pin Deutsch connectors and black protective wire loom.

$29.95

In stock
Baja Designs XL Linkable wiring harness for 8 XL series LED lights with heavy-duty relay and multiple light connectors.

$41.95

In stock
Baja Designs 6-light XL Linkable wiring harness with heavy-duty connectors and relays

$30.95

In stock
Baja Designs splitter harness with weather-sealed connectors for LP4 and LP9 Sport series LED auxiliary lights.

$20.95

In stock
Baja Designs 640188 wiring harness with weather-sealed connectors for a single LP4 or Squadron 2.0 LED light.

$30.95

In stock
Baja Designs S8 Series backlight add-on wiring harness with weather-proof connector and lead wires

$25.95

In stock
Baja Designs 640176 heavy-duty wiring harness with relay, fuse, and switches for LP-series and Squadron LED lights.

$22.95

In stock
Baja Designs LP9 Sport 2-light max wiring harness featuring heavy-duty relays, weather-sealed connectors, and toggle switch.

$35.95

In stock
Baja Designs LP9 Pro heavy-duty wiring harness with relay, fuse, and connectors for two LED auxiliary lights.

$97.95

In stock
Baja Designs LP Series controller module wiring harness with multi-pin connectors and protective black sleeving.

$20.95

In stock
Baja Designs Pro/Sport wiring harness with 2-pin connectors and high-beam trigger for two lights.

$25.95

In stock
Baja Designs Pro/Sport 3-pin high-beam wiring harness for up to two 150W auxiliary lights

$25.95

In stock
Baja Designs RTL series turn signal wiring harness featuring weather-sealed connectors and protective wire sleeving.

$85.95

In stock
Baja Designs dual light wiring harness with integrated mode switch, relay, and weather-resistant connectors.

$77.95

In stock
Baja Designs wiring harness with relay, fuse, toggle switch, and dual connectors for OnX6 and XL series lights.

$30.95

In stock
Baja Designs Ford F-150 Raptor Upfitter Wiring Harness for OnX6 and S8 series light bars

$18.95

In stock
Baja Designs Ford Raptor upfitter wiring harness with weatherproof connectors and black protective wire loom.

$14.95

In stock
Baja Designs 2-light wiring harness with 4-pin Deutsch connectors, relay, and toggle switch for Squadron 2.0 lights

$59.95

In stock
Baja Designs universal wiring harness with connectors for up to five LP4 or LP6 LED lights.

$144.95

Low in stock
Baja Designs 3-pin 5ft extension cable with black protective sheathing and weather-sealed connectors.

$19.95

In stock
55-inch Baja Designs wiring harness splitter with weather-sealed connectors for OnX, S8, and XL series LED lights.

$51.95

In stock
Baja Designs 613608 wire harness splitter with Y-junction and weather-resistant 2-pin connectors

$18.95

In stock
9ft black Baja Designs wire hider trim strip for concealing auxiliary lighting cables on a vehicle.

$64.95

In stock
Three-foot Baja Designs universal wire hider strip with adhesive backing for clean off-road lighting installations.

$29.95

In stock
Baja Designs 600101 Upfitter Harness for auxiliary light wiring integration on a 2024-2026 Toyota Tacoma.

$59.95

In stock
Baja Designs Squadron 2.0 10ft wiring extension featuring 4-pin Deutsch connectors and black protective sheathing.

$29.95

In stock

Can’t Find the Part You Need?

Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.

Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.

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