Upfitter questions:

[Ezekiel2517]

I see that GM sells upfitter switch kits that include the whole lower dashboard. But they also sell just the switch pod and a wiring harness.  Can a person just buy that and cut a hole in the spot where it would go?

 

Also, where do you tap into auxiliary power if you use aftermarket switches?  Thanks!

[jflan23]

Check out the Garmin Power switch too, there is nothing to physically mount in the cab, it connects to an app on your phone via Bluetooth for your switches. All connections for power ground and the circuits stay under the hood. 

[Stand By]

If you go into the 2020-2500HD forum in the modifications section, there is an on going thread for the upfitter switches. Good tutorial.

[Ezekiel2517]

I figured it out.  Super easy to get through the firewall and super easy to get a keyed accessory tap.   I made a YouTube video in case it can help anyone.

 

 

[Ezekiel2517]

[jaxcam02]

On 10/30/2022 at 6:54 PM, Ezekiel2517 said:

I figured it out.  Super easy to get through the firewall and super easy to get a 

 

Nice work man

[customdriver]

This guy has a good series of videos where he does this.

 

 

[RedLT]

On 11/9/2022 at 9:18 AM, customdriver said:

This guy has a good series of videos where he does this.

 

 

 

The Upfitter approach definitely gives it a cleaner OEM look but seems to involve more time and cost.  OP approach seems simple enough and not too bad looking.  Either set up will give switches!

[Hutchy]

I recently installed the OEM kit and found it was fairly easy, although quite a lot of steps. However, now that I'm at the point where I want to connect something to a switch, I found there is no power going to the under dash auxillary distribution box; although the backlights of the switches do illuminate. It’s quite the chore to acquire a schematic or electrical diagram, to locate the power supply to the power box; because my truck did not originally come with the 9L7 option, I assume I need to install some primary fuses?