AUX pass-thru wiring.

[Xflight29]

Let me start by saying I am truly sorry for once again bringing this up.
After I plug this harness in to the gray connector under dash the single wire is my pass thru #6?
And than that loose wire can be hooked up directly to a device with in side the cab ?
What do you all do with the extra looped wires that are designed for the rear of truck ? Stuff them up under dash?
Thanks again.

 

[Wpg_Ram]

When you get this all wired up and working please post a full write up ! I ordered the switches two days ago and am planning on doing it over the winter would love some guidance

 

[John Jensen]

After I plug this harness in to the gray connector under dash the single wire is my pass thru #6?
Yes
And than that loose wire can be hooked up directly to a device with in side the cab ?
Yes. Test it first to be sure
What do you all do with the extra looped wires that are designed for the rear of truck ? Stuff them up under dash?
Yes. Or you can depin/remove them. I tucked mine away

 

[Xflight29]

After I plug this harness in to the gray connector under dash the single wire is my pass thru #6?
Yes
And than that loose wire can be hooked up directly to a device with in side the cab ?
Yes. Test it first to be sure
What do you all do with the extra looped wires that are designed for the rear of truck ? Stuff them up under dash?
Yes. Or you can depin/remove them. I tucked mine away

Thank you so much for clearing this up for me.

 

[Brutal_HO]

Dash camera

Anyone done a dash camera install yet? Looking for the switched power to tap into. I'm thinking i'll find some in the mirror or under that massive cover on the windshield. Any tips taking that thing off so I don't snap any plastic clips?

hdrams.com

 

[Brutal_HO]

Let me start by saying I am truly sorry for once again bringing this up.
After I plug this harness in to the gray connector under dash the single wire is my pass thru #6?
And than that loose wire can be hooked up directly to a device with in side the cab ?
What do you all do with the extra looped wires that are designed for the rear of truck ? Stuff them up under dash?
Thanks again.

I think you're conflating a few things.

The pass through circuit (G425) is on pin #5 VT/YE (Violet/Yellow) wire of the under dash upfitter connector. Yes, the blunt cut wire.




This pass through circuit G425 is available on Aux2 (light grey) pin 4.



You need to loop from whatever AUX# switch you want to use at the port under the hood back into G425 to bring the Aux switched power back into the cab.


Look at the diagram I've posted a link to (and posted again here) and just realize that my crayon coloring was only one example using AUX#6. You could loop any of the Aux switches to G425 (Aux2 (light grey) pin 4).

 

[Xflight29]

Morning, After I hooked up the Gray pigtail [that was part of the AUX kit] to the gray connection under the dash I do not have any power to the loose wire with any AUX switch. My understanding is if I wish to use any other AUX switch other than #6 I would not need to jump the port correct ? why would I not have 12 V to the loose wire ?
Thanks.

 

[John Jensen]

Sorry, I misspoke as I assumed you had jumpered #2 & #4 on the engine compartment light gray aux plug.
You need that jumper to get 12v to the gray wire.
Your other options if you don't need 12v to the rear of the truck are to cut one of those looped jumpers and use their powered side.
If it were me I'd jumper 2 & 4 and use the gray wire

 

[Xflight29]

what are you using for a jumper ?
Thanks.

 

[John Jensen]

I'm not jumpered as I'm not using the pass-through yet.
If I remember the bag of stuff came with jumpers and ends.
If none available I would use 14 ga wire and make one

 

[John Jensen]

Brutal's post #6 displays it all quite well

 

[Xflight29]

thanks for yours and Brutal';s help with this.

 

[Brutal_HO]

There is NO AUX jumper by default. You have to build the jumper from any AUX to G425.

I used 2 of the corresponding color coded wires from the kit and just spliced them together.

 

[Xflight29]

There is NO AUX jumper by default. You have to build the jumper from any AUX to G425.

I used 2 of the corresponding color coded wires from the kit and just spliced them together.

View attachment 8286

This is just what I did. Thanks for all your patients and help with this. I just didn't understand that it needed a jumper. For what ever reason I always thought that the pass-thru had its own power even after I read and re-read all the post you gave.
Thanks again for all your help.

 

[Skooter76]

So I finally got my 2020 2500 Laramie with the Aux switches. The connectors at the Aux PDC are at a downward angle behind the battery cables and are difficult to access. The connectors are attached to a bracket that is attached to the PDC. It is loose as I can slide it up and down slightly. I would like to remove it for better access to the connectors but I can't seem to get to come off. Anyone have any clues?

 

[elephantrider]

look on the top left corner of the fuse box, based on the pic orientation. there is a press clip you need to free. then the bracket that holds the aux tails will all come up together.

 

[Skooter76]

look on the top left corner of the fuse box, based on the pic orientation. there is a press clip you need to free. then the bracket that holds the aux tails will all come up together.

View attachment 9196

Thank you. Just pull it out? I did try to both push and pull it as if it were a locking tab. I'll give it another try.

 

[elephantrider]

it's a slide lock. you push the little tab toward the front of the truck while simultaneously pulling up on that bracket.

 

[KnuckleHead]

Are you guys doing this on a 19+? I see you can buy the switches for the 4thgenerationram.com site, but where do you get the kit for 19+? I have a 21 Power Wagon on order and was disappointed to find out you cant get the Aux switches in the PW.

 

[elephantrider]

mine is a '19, yes