Power for aux lighting

Withthe new can bus systems where is it safe to tap power for a bumper mount light bar on a 2014 2500?

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the battery. i wouldnt want to pull power from anywhere else for a lightbar, imo.

light bars dont draw a ton of current. If you want them to shut off with the truck use an ignition source but relay it. that way what ever circuit you use its only a trigger and not putting on a draw. Now if you want them to turn on whenever even when the truck is off then directly to the battery

baum said:

light bars dont draw a ton of current. If you want them to shut off with the truck use an ignition source but relay it. that way what ever circuit you use its only a trigger and not putting on a draw. Now if you want them to turn on whenever even when the truck is off then directly to the battery

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Relay is key if you are going to hook up any aux anything.

Using an ignition source wont upset the canbus?

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warwagon98xj said:

Using an ignition source wont upset the canbus?

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for my accessories that I added, i took trigger from the cigarette lighter and constant from the battery and ground is obvious. things have worked out well so far. I have two heated seats I added in hooked up that way. Make sue you take the extra step and add a fuse as well. Extra protection.

With using a Relay No.

But there are many ways to add aux power for accessories or lights. LED bars don't draw much current so you can tie many together.
My personal choice when adding things to a vehicle is go direct of the battery to a auxiliary weather tight fuse box, then you can add as many circuits as you want being that you don't over load the fuse size on the direct to battery connection.

then the possibilities are endless from there as you can supply source power from that aux fuse box and have a trigger wire set up off a OEM circuit if using a relay, something like the headlights, or cargo light circuit or just by simply adding a toggle switch.

I don't know your level of knowledge on wiring but do some searches on the ole google or youtube for some how to videos that will give a visual and probably explain it better than I can.

https://www.delcity.net/store/Seale...p_kw=&mp_mt=&gclid=CL2Z9d3P7dICFQmRaQodgs8MrA

something like that RT?

There several circuits identified in some of the schematics that can be tapped into for auxiliary lights and such, both are inline with the power ports on the dash/console and can be tapped easily behind the center console bezel. One other place I tapped was under the drivers seat there are several keyed wires that had nothing on them in my work truck. I think they were for seat heat or something else my work truck didn't have? I'd have to look but all of those locations were 30 fused/keyed circuits if I'm not mistaken. I'll check for sure when I get back to work. Hope this helps.

warwagon98xj said:

https://www.delcity.net/store/Seale...p_kw=&mp_mt=&gclid=CL2Z9d3P7dICFQmRaQodgs8MrA

something like that RT?

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Yup, I've used that exact 1 at a few times on the old CJ-7, my 07 Ram, our tractors when adding lights and circuits for stuff.
That one I think is a little difficult cause if I remember right it uses gm style connectors to put the pins and wires together. just need the crimp tool and the build it yourself GM style connectors from your local Napa

I found what seems to be a good write up online


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