Ditch light install using factory AUX switch and pigtails

[Duce95]

Thanks for posting this to help make it a little more clear for the rest of us. I just received my Rigid D-SS Pro Floods, and looking to wire them up to the AUX switch on my trailhunter. The wiring harness that comes with the Rigid lights has an inline 15A fuse, so my thought would be to cut out that section and just wire directly to the Toyota pigtail, using the black wire and hooked up to AUX 1. I don't need to run the power/ground wires from the Rigid harness to battery or anything right? - just wire them directly into the pigtail, accordingly? It almost seems too easy.

Yep exactly. I didn’t include any inline fuses. Depending what wire you use, it will function with aux1/2/3

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[wolfpackwest]

Well that sure was almost too easy. It IS a little confusing because the thicker white wire is actually the ground, and the smaller black wire is the 15A power wire; had to be careful to not reverse them. But once wired up, worked like cake. I loomed and heat shrunk my own harness as well. Just waiting on the brackets to show up this weekend and we'll be good to go. Thanks again for posting this.

 

[wolfpackwest]

Just wanted to say thanks for a 3rd time

 

[bsquaredMTB]

I installed mine this weekend. Those OEM aux ports are great!

 

[Duce95]

I installed mine this weekend. Those OEM aux ports are great!

Looking great. So much easier than fishing wire through firewall grommets.

I’m now using all three aux on mine. I have ditch lights, light bar in grille and a rear chase/flood light. If you ever want to run something in the rear, I would use the other harness that connects under the hood. The pigtail that has the extra connector runs power to the aux in the rear by the hitch. I had to take apart and rewire my set up when I wanted to wire in my chase light.

 

[trailhunger]

If you ever want to run something in the rear, I would use the other harness that connects under the hood. The pigtail that has the extra connector runs power to the aux in the rear by the hitch. I had to take apart and rewire my set up when I wanted to wire in my chase light.

...right, so that pigtail for the engine bay (the one w/the single black wire connects into the engine bay and then the rear is now hot?) I want to get my GFC camper lights running on an aux switch.

Also using the cabin kick plate pigtail tie-in for my rinsekit on the roof. Routing down the roof of the camper, between cab & bulkhead up in through the grommet under the rear seat and under the floor board channel next to that loom on the driver side

 

[SmokyMtnTaco]

I'm a few months late to the party, but I did discover something about about the aux connector port that everyone tends to use just to the left of the washer reservoir. My advice, don't use that aux connector for front accessories, use that for the jumper for rear accessories.

It's not being talked about much in the 4G forums or on youtube, but I highly recommend informing yourself about the 'traditional' aux connector before wiring anything up to it:

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MUST WATCH: Why Your 2025 Tacoma Rear Auxiliary Port Has NO POWER?!


I'm publishing a youtube video today detailing the install of Offroad Lights on my 25 Trailhunter with the problem solved (in my mind) about the snorkel. Let me know what you think.

It drops today, if your interested:

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OFFROAD LIGHTS: 2025 Toyota Tacoma Trailhunter in BEAST MODE!

I've got an overview video if you interested as overview of the prewired aux connectors on the 2025 Tacoma Trailhunter:

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FOUR PREWIRED AUX Switches in 2025+ Tacoma

Let me know what you guys think, I appreciate it!

 

[CyberTaco]

Depending on your trim and option package, you'll have 3 Aux switches to the left of the steering wheel. They're pretty obvious if you have them. I know they come on TRD Premium trims. Maybe upgrade, but I'm not sure.

They do come on the Off-Road upgrade.

 

[RocktMtnWay_406]

Toyota really made it easy with these prewired plugs I must say. When I ordered my ditch lights I was whining like a little toddler thinking I was going to have to go through the dreaded firewall before remembering I don't have to do it at all!

I don't like the placement on these prewired plugs though I must say. The one in front makes sense, for a light bar and what not, which is what I plugged my ditch lights into, AUX 2. Another one in the bonnet which would preferably make more sense for ditch lights and then they put the third inside the cabin somewhere if I'm reading the manual correctly which makes absolutely zero sense to me. I would've liked to see one near the middle or rear of the truck, for something like rollbar lights.

I'm kinda scratching my a head a little too. I have 3 harnesses. I understand what the bigger one by the DS headlight does. There's a smaller one next to it (I think) that one runs to the back? But there's a weird pigatil of 2 wires coming out of that harness? I did find the dummy plug at the rear.

 

[SmokyMtnTaco]

I'm kinda scratching my a head a little too. I have 3 harnesses. I understand what the bigger one by the DS headlight does. There's a smaller one next to it (I think) that one runs to the back? But there's a weird pigatil of 2 wires coming out of that harness? I did find the dummy plug at the rear.

Your going to want to go watch my full playlist on the pre wired connectors. I also have a video coming out tomorrow about always on accessories via the pre wired connectors. That dummy plug in the back, I know how to get power to it. Here's the playlist:

 

[2024TRDProOffRd]

Here you go!

Did anyone tap into running light wire on their 2024 to have their ditch backlights work? Does anyone have pictures or instruction on which wire they tapped into for this?

 

[2024TRDProOffRd]

I installed mine this weekend. Those OEM aux ports are great!

I have same truck, where did you run your wires to zip tie them? I was thinking of towing them to the rear metal tube in very back of engine. Seen others attach to this also but makes me nervous as I don’t know if this is a hot line for coolant or heater core fluid etc.

 

[dvrgz]

Beast. What kind of light bar is this ? Can you show some photos of it in action?

 

[ATacoInAZ]

I haven’t really seen anybody do it yet so I wanted to share some photos from my install yesterday.

I made a wiring harness for my install. It’s complete plug-in play using the factory AUX switch and provided pigtails.

Do all trims have this in the truck where you can plug in the adapter? I thought it was just certain trims that have this option to plug that adapter for the aux switch

 

[Duce95]

Beast. What kind of light bar is this ? Can you show some photos of it in action?

I received it from @LASFIT. It’s super bright!

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