Wiring Help, Please

[Core-Lokt]

I'm putting in an A-pillar pod/gauges, and I'm asking if anybody can identify a (preferably) fuse for a switched power and illumination circuit on the driver's side interior fuse panel. Offhand, everything I checked with a test light was constant-hot, and I'd much rather uses a piggyback fuse. I can certainly find a wire, but I'd rather not half-tap.

 

Thanks in advance for any help.

[davester]

you might read through the info on gmupfitter.com for your truck, to find a good power source.

[Core-Lokt]

Thanks; I looked there a few minutes, and I think I can find something. I really never looked there, as I thought it was stuff like PTO/aftermarket bodies/accessories like snow plows.

[PBNB]

The upfitter kit is quite a kit! However, GM doesn't want to install it so they give you the parts and show you the door.

 

You get 5 buttons and a separate fuse block as well as some large fuses that got in the battery covers. There were already installed on mine truck but nothing behind them (see the picture). I think the button install would be fun cutting into the plastic but overall, I really like the kit.

 

These are great and can be set to on all the time or switched by the key.

 

On the fuse block you get fuses and relays which makes it easy to connect lights or other high draw devices or gauges. 

 

What gauges are you getting? If Banks, they have an OBD connector which makes connecting them easy, speaking from experience. Some other gauge pods will do the same.

 

So far I have Diode Dynamics fog lights and my dash cam connected. Working on more items to connect.

[Core-Lokt]

On 7/20/2026 at 7:20 PM, PBNB said:

What gauges are you getting? If Banks, they have an OBD connector which makes connecting them easy, speaking from experience. Some other gauge pods will do the same.So far I have Diode Dynamics fog lights and my dash cam connected. Working on more items to connect.

I know the upfitter switch deal well; my truck didn't have it, so in one day I retrofitted/wired the kit, and since I knew I'd have several panels off, I did the same day a High Country cluster, and console charging/cooling. That charger cooling tube was the worst part of the deal.

 

The gauges are MaxTow. I don't need an iDash, as the HC cluster has all that information, and I'm using the OBD for a pass-through for the Intellihaul cameras? or the GM dash camera?, anyway. I'm ending up going under the hood to the fuse box. I identified constant hot/switched hot/illumination and have some piggyback taps in. Just waiting for an 4-wire 18-gauge cable to come in the 29th to finish. I already ran the sensors, and have the gauges/pod mounted. If I could've found what I needed on the fuse panel by the light switch, they'd be up and going.

Edited 21 hours ago by Core-Lokt
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