Baja Designs LP9 / LP6 / LP4 Backlit Add-On Wiring Harness

The Baja Designs LP9/LP6/LP4 Backlit Add-On Wiring Harness (MPN: 640177) is the purpose-built solution for adding backlight functionality to an existing S8 series light setup that lacks a dedicated backlighting circuit. If you already have S8 lights running but no backlight wiring in place, this harness closes that gap cleanly.

The harness is cut long enough to reach your fuse panel or splice directly to keyed power — no hunting for extra length mid-install. Baja Designs ships it complete with detailed instructions, four common fuse taps, an alternate splice connector, and zip ties. Everything you need to finish the job is in the box.

We like that Baja Designs keeps the included hardware practical rather than sparse. The fuse tap options give you flexibility on the power source, and the splice connector handles situations where a fuse panel run isn't ideal. It's a targeted, no-guesswork add-on for owners who want to make full use of the backlit feature already built into their S8 series lights.