How to Install LED Rock Lights on a UTV or Truck: Step-by-Step Wiring and Mounting

Quick answer

Plan your light positions first, mount each pod to a solid metal surface with the hardware it came with, then run a fused positive lead to a relay and switch and ground each light to clean bare metal. Keep every connection above the splash line, use dielectric grease on connectors, and test the whole circuit on the bench or with a meter before you button up panels.

Rock lights are the easiest way to turn a dark trail, campsite, or wheel well into something you can actually see. The install itself is not complicated, but the details decide whether the lights still work after a season of mud, pressure washing, and washboard roads.

This walkthrough covers off road rock lights on both side-by-sides and pickups: choosing mounting points, routing rock lights wiring, and handling rock lights switch wiring so you are not chasing a blown fuse six months later. Work one stage at a time and test as you go.

Before you drill: plan positions, power, and clearance

Walk around the vehicle with a flashlight and mark where you want light: wheel wells, rocker panels, frame rails, and the rear bumper are the usual spots. On a UTV, avoid anything that moves with suspension travel, and on a truck, stay clear of brake lines, fuel lines, and the fuel tank. Four to eight pods is typical; more pods means more current, so check the amp draw on the box before you commit.

Decide where the switch will live before you drill anything. A dash or cab panel location that you can reach while seated beats a spot you have to lean out for. Confirm you have a fuse tap or an open accessory circuit, and that your wire length is realistic once you add slack for suspension flex.

• Photograph your planned positions before drilling so you can compare left and right sides.
• Leave 3-4 inches of slack at each light so vibration does not pull on the connector.

Mount the lights on solid metal, not plastic trim

Rock light mounting is where most installs go wrong. Self-tapping screws into thin plastic or a plastic wheel well liner will loosen and eventually let the pod spin or fall. Use the bracket and hardware supplied with the light, and if the surface is thin sheet metal, add a backing washer or a small plate so the bolt cannot pull through.

Aim each pod before final tightening. You want light spread across the ground and the tire, not straight into oncoming eyes or back into your own mirror. On a UTV, keep pods inside the width of the cage or fenders so a rock or tree does not rip them off.

• Checkpoint: grab each pod and try to move it. Any flex means the mount needs a backing plate or a thicker surface.
• Point lights slightly downward and outward; a 30-45 degree down angle reduces glare.

Route wiring away from heat, pinch points, and moving parts

Run the harness along the frame or existing factory loom, and secure it every 10-12 inches with zip ties or rubber-lined clamps. Keep wire at least a few inches from exhaust components, and never route across a suspension arm, driveshaft, or steering linkage where it can be pinched or stretched. If you must cross a gap, add a loop of slack and secure both sides of the loop.

Where wire passes through metal, use a rubber grommet or split loom. For connections exposed to water and mud, use heat-shrink butt connectors with adhesive lining rather than crimp-only connectors. A dab of dielectric grease inside each connector housing keeps moisture out of the pins.

• Checkpoint: turn the wheels lock to lock and cycle the suspension by hand where possible. Nothing should pull tight.
• Label the positive and ground leads at each junction with tape or a marker before you hide them.

Wire the switch and relay the right way

Rock lights switch wiring is simpler than it looks: battery positive goes through a fuse to the relay's power terminal, the switch controls the relay's trigger circuit, and the relay output feeds the lights. Ground the relay trigger and the lights to clean bare metal on the frame or a factory ground stud. Scrape paint away at the ground point and seal it afterward with paint or dielectric grease.

Size the fuse to the circuit, not to the wire you happen to have. If your lights draw 10 amps total, a 15-amp fuse protects the circuit without nuisance blows. Use a relay rated above your total draw; cheap relays that match the load exactly tend to fail early. If you are not comfortable identifying a switched ignition source, stop and use a factory accessory circuit or a professional install.

• Checkpoint: with the switch off, confirm no voltage at the light connectors using a test light or meter.
• Checkpoint: with the switch on, verify each pod lights and that the fuse does not warm up noticeably.

Seal, test, and clean up

Once everything lights, go back over every connection and mount. Re-tighten brackets, trim excess zip tie tails flush, and add a second layer of protection where wire runs behind a tire or near the ground. A little extra loom near the wheel wells saves a lot of troubleshooting later.

Test in the dark on a flat surface so you can see gaps or hot spots, then test again after a wet drive or a wash. If a pod flickers, the usual causes are a loose ground or a connector that took on water, not a failed light.

• Checkpoint: run the lights for 10-15 minutes and feel the relay and wiring for unusual heat.
• Re-check torque on mounting bolts after the first off-road trip.

Install steps at a glance

1. Step 1: Plan and mark positions: Mark wheel wells, rockers, and frame rails, and confirm a switch location you can reach from the seat. Common mistake: drilling before checking what is behind the panel.
2. Step 2: Mount each pod to solid metal: Use the supplied bracket and hardware, add a backing plate on thin sheet metal, and aim pods down and outward before final tightening. Checkpoint: no flex when you push or pull the pod.
3. Step 3: Route and secure the harness: Follow the frame or factory loom, tie every 10-12 inches, use grommets through metal, and keep wire off exhaust and moving parts. Common mistake: leaving a tight run across a suspension arm.
4. Step 4: Wire the relay, fuse, and switch: Fused battery positive to the relay, switch on the trigger circuit, and clean bare-metal grounds for the relay and lights. Checkpoint: no voltage at the lights with the switch off.
5. Step 5: Seal, test, and re-check: Grease connectors, trim ties, run the lights for 10-15 minutes, then test again after a wet drive. Flicker usually means a ground or water, not a dead pod.

Kemimoto parts that make this install easier

• UTV Steering Wheel Removal Tool for Polaris RZR XP 1000: Made from billet aluminum construction, with an extended screw design, a heavy duty center bolt for leverage, and socket head allen screws for outer edge pressure. If your rock light switch or wiring has to go behind the steering column or dash, pulling the wheel cleanly with the right tool beats prying at it and risking a cracked hub or damaged clock spring.
• UTV Rear View Mirror for Polaris Ranger 1000 XP 900 500 570/Crew: Features a 10.2 x 3.7 inch wide convex mirror, an adjustable joint for tool-free adjustment, and an anti-shake bracket designed to stay secure under UTV vibration. After adding lights, glare and vibration are the two things that ruin night visibility. A mirror that holds its position lets you confirm your rock lights are aimed where you want them without stopping.

Take the install one stage at a time: mount, route, wire, then test. A tidy harness and clean grounds matter more than the number of pods, and they are what keep your rock lights working after the first muddy season.