ARB BASE Rack NANO Kits 2 & 4 Installation Guide

Tools Needed

The following tools are required for installation:

Torx Bit T25
Philips #2 Screwdriver
7mm socket with ratchet

Step 1: Factory Cap Removal

Remove the factory ARB Base Rack caps from the rack. Unscrewing the two Phillips screws will separate the cap, allowing you to remove it from the rack.

[Image: Close-up of ARB Base Rack end cap with two Phillips screws highlighted, indicating removal.]

Step 2: Routing the Harness

Once all four caps are removed, route the Base Rack internal harness through the rack. Check the orientation of the provided harness. Ensure the power cord is positioned on the preferred corner for routing trigger wires to the switch. Refer to rack layout notes. Using a fishing tool is recommended to aid in pulling the wire through the rack.

Rack Layout Notes

When routing the rack harness, note the layout and run the long horizontal lengths of the harness along the appropriate sides of the base rack. Orientate the harness to position the connection point for switches as preferred.

[Diagram Description: A schematic shows a rectangular Base Rack frame. Arrows indicate "Light plugs" at each corner. One side is labeled "Harness Extension plug side" with a line extending outwards labeled "10' long harness extension" and "Open wire leads". The main harness is described as "Base Rack inner rack harness 1 piece - 2 long sides and 1 short side". A note clarifies that the M12 plug for the harness extension is Male vs Female to avoid confusion with the light mating sides.]

Step 3: Installing the Light in the New Cap

Install the light into the cap using the provided hardware. Remove the upper cap with a T25 Torx bit to separate each cap. There are two mount locations: the lower mount is for horizontal positioning (ideal for distance off the vehicle), and the top mount allows for 10 degrees of vertical adjustment (ideal for more intense lighting around the vehicle).

[Image Description: Shows the light unit and separate cap components. Illustrations demonstrate mounting options: "Top Hole Mounted", "Bottom Hole Mounted", "10 degrees angled down", and "Straight Mounted".]

Note: Keep the cap separated until you are ready to install it on the rack.

Step 4: Connecting the Lights to the Rack and Harness

Connect each light to the appropriate M12 NANO plug by screwing the plugs together. These plugs are notched to mate only one way. Tighten the plugs hand tight. Repeat for all lights and lower cap brackets attached to the harness plugs.

[Image Description: Two M12 NANO plugs shown, one male and one female, ready to be connected.]

Step 5: Attaching the Lights and Caps to the Rack

Push any and all access wires into the base rack. Expose the power cord and run it between the cap and the base rack, outside of the cap. Sandwich the top and bottom caps into each corner and tighten the hardware to secure the cap to the rack.

[Image Description: Shows the light unit integrated into the rack cap, with wires routed. Another image shows the assembled cap being attached to the rack.]

Step 6: Terminating the Harness Extension to Switches

You will now terminate the open lead end of the extension harness to your power source. The wiring is as follows:

Red: Projection
White: Amber TRL (backlight)
Black: Ground

Please reference NANO wiring diagrams on the instruction page on the NACHO website: www.NACHO.love.

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