Need guidance installing ditch lights without AUX switches

[opelu]

Hey guys, I have a 2024 OR without the OEM aux switches. I’ve seen posts and videos on so far about wiring with the aux switches, but I don’t believe i’ve come across an install on a truck without them.
Just recently bought DD SS3s and it came with their 4-pin wiring harness, but I don’t have the 3 aux switches on the panel in the cab. I’ve bought OEM style switches and need a little guidance with the wiring. I’ve got no clue on how to splice the OEM switch into the harness or if there’s another way to get it work.

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[Sagebrush]

This should help.

 

[ixo]

that cal raised video is great, BUT i would recommend around 3:40 they say "go to the side of the grommet" and I would recommend going thru the grommet itself. I may be being overcautious here, but violating the seal of the grommet will only introduce a potential leak area into your cabin. The grommet has areas you can highjack cleanly, and do it more correctly.

If you look at this image (from here):

...you can see the red arrow showing where the guy has "punctured" the firewall grommet to fish-tape something back, but also the cyan arrow pointing to a little nipple nub that you can actually just remove the rounded tip and fishtape though there undestructively. toyota actually knew people would want to run through these grommets and provided a path that remains water sealed, etc.

good luck. this, plus the video linked above should be enough, hopefully!

 

[opelu]

Thanks guys! Got rained out so gotta wait for it to clear up before I continue.

Still a little bit stumped with what colors from the OEM switch go where on the diode harness vs the cali raised one. I see the OEM switch is black/white, green/yellow, and red.

Do I use the circle switch and splice into the blue, red, and yellow there? or the aux pigtail which is just yellow and blue?

 

[Baltimore]

Thanks guys! Got rained out so gotta wait for it to clear up before I continue.

Still a little bit stumped with what colors from the OEM switch go where on the diode harness vs the cali raised one. I see the OEM switch is black/white, green/yellow, and red.

Do I use the circle switch and splice into the blue, red, and yellow there? or the aux pigtail which is just yellow and blue?

See if my post on wiring up my grille light helps you. I also map out the wire color matching. I used the DD wire harness and I suspect it's the same one you are using, just for different lights/purpose.


https://www.tacoma4g.com/forum/thre...ht-bar-on-a-vehicle-without-factory-aux.8252/

This might also be useful
https://www.tacoma4g.com/forum/thre...drivers-switch-panel-trim-removal-steps.7138/

Happy to try and answer any related questions or provide extra clarity if those do help you.

 

[cheyhugashiguchi]

I just used the provided switch and used this emptied slot, just drill a hole big enough and the switch will fit

 

[opelu]

Got them wired in using the OEM switch. Thanks for the help everyone! Ran it through that nipple in the grommet like you guys recommended. Just need to aim them right when it gets dark now.

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