9004 XenonDepot Bi-Xenon HID Relay Harness

Accessory Type:
Relay Harness
  • Perfect Fitment

    Correct Part Always

  • In-House Experts

    We Know Lighting

  • Lowest Prices

    We Price Match

  • Fast Free Delivery

    $40+ Free Shipping

QUALITY HARNESS: Sealed relays, sealed fuses, copper connectors - buy the best HID kit relay harness for your vehicle. Some vehicles require the installation of a relay harness when upgrading to an HID kit as a result of can BUS technology. If your vehicle's fog lights are strobing like crazy after an Hid kit installation, pick up XenonDepot's specially designed "HID kit Relay harness" to solve the craze!

TWO-PACK: Unlike lower priced alternatives, you'll actually get 2 relay harnesses with each purchase: one complete harness per side. We believe that when using a relay harness, each ballast/bulb should have it's own independent fused relay harness to ensure both your fog lights don't go out if something fails. That aside, we also provide you with TRULY sealed relays, fuse holders, and tinned copper connections to ensure this harness meets tough automotive uses.

INSTALL: The 9004 XenonDepot Bi-Xenon HID Relay Harnesses is designed to install as simple as possible. You will connect the (2) power wires to the positive terminal of the battery, connect the (2) ground wires to the negative terminal of the battery, and connect the yellow ring plugs to the HID Ballast. Lastly, you will connect the input plugs to your HID power wires which triggers the HID Relay Harnesses to open or close.


  • Fixes Lack of Power Issues (Needed for Autolamps and DRLs)
  • Universal Design
  • 1 Year Warranty


  • Two (2) 9004 XenonDepot Bi-Xenon HID Relay Harnesses