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DIY: Add Aux Switches to 19+ Ram 2500 Laramie 6.7L

2nd license of AlfaOBD is 50% off if you reach out to Alexey.
 
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Jsman2th said:
@Brutal_HO Reach out to Alex? Which interface cable do you recommend since I will be getting both google and PC or can Alex help point me in the right direction?
Click to expand...

Alex=AlfaOBD. If you visit the alfaobd website you can find the info to contact him for a discount on the 2nd license.

Vgate Vlinker MC works for Android and PC. MC+ if apple. The MC+ will work but I've had weird issues with my older Galaxy phone and BLE.
 
Jsman2th said:
@Brutal_HO Reach out to Alex? Which interface cable do you recommend since I will be getting both google and PC or can Alex help point me in the right direction?
Click to expand...

Brutal_HO said:
Alex=AlfaOBD. If you visit the alfaobd website you can find the info to contact him for a discount on the 2nd license.

Vgate Vlinker MC works for Android and PC. MC+ if apple. The MC+ will work but I've had weird issues with my older Galaxy phone and BLE.
Click to expand...
**Alexey
 
Did the aux switches on my 17 2500, had to source and wire a PDC to get them going. It's not hard, but it is time consuming, and I was never totally happy with the final result. Everything worked fine, and the things that bothered me are not things anyone other than me would ever see, I just regretted not getting it factory. Fast forward to my 5th gen-this time around I was set to do the same using the kit you can buy or the info from this thread but got chatting with Florotory and just bought his harness. Well put together, took me roughly an hour ish to do the underhood part, and maybe another hour to change the switch panel and enable everything in Alpha OBD. He's got this deal down to a science, everything fit like I'd have wanted it to if I did it myself. Reasonably sure there's no way I could source all the materials and do it for the money he's charging and he was quick. From order to delivery was barely a week, and he had to wait for a few pieces to get it done. Over the weekend I got my rock lights, aux backup lights, air compressor and a cooling system for my dog crate in the bed all set up, just a few more accessories to wire and I'll be set. Worst part of the whole project was finding a switch panel, they seem to be on perpetual back order. I ended up settling for a panel with the Air suspension switch on it, which I don't have. Everything works fine I just have a random button that does nothing lol and that extra button cost a little more. Anyway, thanks to everyone that may have been involved in sorting this out, hands down I prefer the look and flexibility of the factory switches to an aftermarket solution.
 
tommytuner said:
Did the aux switches on my 17 2500, had to source and wire a PDC to get them going. It's not hard, but it is time consuming, and I was never totally happy with the final result. Everything worked fine, and the things that bothered me are not things anyone other than me would ever see, I just regretted not getting it factory. Fast forward to my 5th gen-this time around I was set to do the same using the kit you can buy or the info from this thread but got chatting with Florotory and just bought his harness. Well put together, took me roughly an hour ish to do the underhood part, and maybe another hour to change the switch panel and enable everything in Alpha OBD. He's got this deal down to a science, everything fit like I'd have wanted it to if I did it myself. Reasonably sure there's no way I could source all the materials and do it for the money he's charging and he was quick. From order to delivery was barely a week, and he had to wait for a few pieces to get it done. Over the weekend I got my rock lights, aux backup lights, air compressor and a cooling system for my dog crate in the bed all set up, just a few more accessories to wire and I'll be set. Worst part of the whole project was finding a switch panel, they seem to be on perpetual back order. I ended up settling for a panel with the Air suspension switch on it, which I don't have. Everything works fine I just have a random button that does nothing lol and that extra button cost a little more. Anyway, thanks to everyone that may have been involved in sorting this out, hands down I prefer the look and flexibility of the factory switches to an aftermarket solution.
Click to expand...
Glad everything worked out. Hardest part is sourcing the switches for sure.
 
Thanks for the thread everyone. I was able to source aux switches for a power wagon. Purchased a $30 aftermarket PDC on amazon as well as a short 6 wire cable. All works great! Only out about $250 for it all.

Need to clean up the wires a bit, but my leads for the switches are all 10 gauge, so should be able to connect whatever I need. I have a 500 watt pure sine inverter on one. And 8 offload lights spread across 2 others. I have plans for airbag pump on one as well. The PDC fit and screwed right into the stock bolt holes which was suprising.

1000003751.jpg

1000003739.jpg
 
I have a harness that someone wants built. If anyone else is needing/wanting one. Just send me a message. I’m ordering some parts today.
 
Do the panels for 22+ still work in a 19-21 truck? I know the switches are glossy, but I've been unable to source one that is glossy, but have found a few with the matte buttons. Thanks!
Jimmy07 said:
Here’s all the current aux switches part numbers. 19-21 part numbers have a top row of switches that are glossy:
View attachment 51555
22+ part numbers have a top row of switches that are matte.
View attachment 51556

Gas trucks, top row of switches called out, bottom row is 6 aux switches:
Tow/haul, traction control:
19-21: 68476018AB
22+: 68578987AA
Tow/haul, traction control, rear park assist:
19-21: 68476044AB
22+: 68579000AA
Tow/haul, traction control, front and rear park assist:
19-21: 68476024AB
22+: 68578990AA
Air suspension, tow/haul, traction control, front and rear park assist:
19-21: 68476025AB
22+: 68578991AA

Diesel trucks, top row called out, bottom row is 6 aux switches:
Tow/haul, exhaust brake:
19-21: 68376642AE
22+: 68578992AA
Tow/haul, exhaust brake, rear park assist:
19-21: 68476053AB
22+: 68579002AA
Tow/haul, exhaust brake, front and rear park assist:
19-21: 68476031AA (now replaced by 2022 part number)
22+: 68578994AA
Air suspension, tow/haul, exhaust brake, front and rear park assist:
19-21: 68476035AB
22+: 68578995AA
Click to expand...
 
Florotory said:
There are quite a few threads about Adding Aux switches and AlfaOBD to our trucks out there. I did hours of reading them and watching numerous videos on it as well as messages back and forth to get this installed on my truck. I wanted to make a DIY for someone else that wants to do it and keep it as factory as possible yet fairly easy to accomplish. Here are the steps from gathering the needed parts , programming the truck.

Updated red jumper wire instruction and part numbers as well as daisy chain instruction This makes the install a lot easier. Thanks to @JustARam22 for pointing out the issues.(10/10/23) I will come back and remove the part numbers no longer needed.
THIS IS BEING DONE ON A 2020 2500 LARAMIE W/6.7L WITHOUT AUX SWITCHES FROM THE FACTORY. PLEASE FOLLOW THIS AT YOUR OWN RISK!!!!
Thank you to:
@Brutal_HO
@Jimmy07
@Harrisons Garage
@Atty
@elephantrider
@BighornHDRam
Hopefully I didn't miss anyone, if I did, please just send me a message and ill add you to the list.

STEP 1: Parts needed (some part numbers may change over time)
I will attach a spread sheet with parts and cost to this as well.
-Correct switchbank for your particular truck. My part number was: 68376644AE (tow/haul, Exhaust brake, FR/RR park sensors and 6 aux buttons)-$180.

TOOLS:
-Wire diagrams
-Wire Strippers
-Wire Crimpers
-Socket set
-Heat gun


Wiring needed.
-12ga wire red and various color
-14ga wire various color
-20GA 1ft each red,blk and org (i used yellow cause it's what I had available)
-22ga approx 5ft each - 6 different colors
-Wire loom of your choice. I prefer the mesh over the plastic.
-Heat Shrink
-Electrical Tape

Connectors:
-1456989-3 from digikey for jumper harness into back of switchbank
-1419167-1 from TE Connectivity for jumper harness into OE harness
-CID1044-6.3-11 from Connector ID for gray Aux plug on side of AUX PDC
-CID1044-6.3-21 from Connector ID for Female plug on side of AUX PDC
-CID3083 wire seal for gray plug on side of Aux PDC

Terminals:
-CID100-6.3-MS3 from Connector ID for Female side of gray plug (side that won't get used till you add an Acc),
-272-7116414202 from Mouser Electronics for the male side of the gray AUX plug on side of Aux PDC. (plug that wires into AUX PDC)
-63347-1 from Digikey for that goes from Relay switch fuse to 86 terminal of relays
-42475-2 from DigiKey for jumper wire in aux PDC
-180351-2 from Digikey for Jumper Wire in AUX PDC
-571-v23540x7000y21 from Mouser Electronics, pins for plug of jumper harness to back of switch bank
-1438299-4 from Digikey to pin plug that will go to Factory harness from jumper harness.
-Fuses ( i got from amazon)
-871E-1a-d-r1 U19 relays, you will need 5 of them. As of right now they are hard to get. I got them from eBay @$15/2pk

Step 2: Building the Harnesses:

Jumper Harness:
Jumper to OE Harness:
You will need Approx 1ft of Red, Blk and Org 20GA wire along with 3 male pins (pn: 1438299-4) and Black connector (PN: 1419167-1) .
- Put the loom over the wire, tape each end of the look and then Heat shrink it
- Use wire strippers to strip off enough insulation to crimp it to the pin.
-Crimp wire and Pin together ( just an example, I cleaned up the crimp before pinning it)
View attachment 51163
-Repeat that for the other 2 wires.
Should look like this when done. ( I didn't have ORG wire so i used yellow)
View attachment 63220
The other end of the wires will go into the connector in the next step.

Jumper harness to back of switch bank:
You will need Approx 5-6ft (maybe less) of 6 different color wire. (I used YW, Beige, WH, Blue, Purple, and orange)., 9 pins PN: 571-v23540x7000y21 and connector 1456989-3
-Put the wire loom over the wires leaving about 2-3in at the connector end and about 6in at the end that will plug into PDC when done. Tape it and Heat shrink it.
-like the other plug you will strip away just enough wire to crimp them to the terminals. Repeat this step 9 times.
-Crimp the terminals to each wire (9 of them)
-Insert each pin into the correct location per the diagram. Should look like this when done.
View attachment 51165
When this step is done you should have the black plug with 3 wires in slot 6,7,8; the other end of those 3 wires should be plugged into the light gray connector in slots 6,7,8. You should have 6 different colored wires coming out of the light gray connector pins 2,3,10,11,12 and 13. The other end of those 6 wires should be blunt cut for now.
View attachment 51166
Jumper harness from Switch bank to Aux PDC is now done and ready to plug in behind the switch bank.
View attachment 51167

Jumper Wire in PDC:
For this you will need 6 pieces of 12ga wire (red) cut to approx 4.5" in in length; 6 terminal PN:272-7116414202; 6 terminal CID100-6.3-MS3.
One end of the wire gets the Male terminal, and the other gets the Female Terminal.
Jumper wires should now be done and look like this:
View attachment 63669


This will end up going from post 30 on the relay to the Fuse. 1 per aux switch

Daisy chain for Relay switch fuse to post 86 on relays:
You will need 7 pices of 18ga wires 1 approx 6in long . The other 6 need to be shorter. approx 2.5" each. Then take the shorter wires and solder them evenly spaced to the longer wire. Also, you will need 6 of the Terminal PN:63347-1 and 1 of the terminal PN:272-7116414202. Before I put the terminals on I mocked the daisy chain up in the PDC to make sure they were the correct length so that they were not too long or too short. Then I crimped the terminals on.
-Strip off just enough wire to crimp the male Terminal to the end of the wire. This is basically what it should look like before you have the Terminals on. The male terminal will go at the end at the top of the pic, the rest will be the gold colored terminals part number: 63347-1.
View attachment 63670


Will Continue in reply section. Only allows 10 attachments so I cant do it in one long post. I will Add to this once I do the install as well.
Click to expand...
Reading the instructions you call out 20ga wire for the jumper harness, in your wiring diagram you list 18ga? Do you think 18ga will work in all the low amp connections and Inplan to use 10ga to power my accessories. I’m trying to avoid buying multiple different wire gages.
 
Ram-Nitro said:
Reading the instructions you call out 20ga wire for the jumper harness, in your wiring diagram you list 18ga? Do you think 18ga will work in all the low amp connections and Inplan to use 10ga to power my accessories. I’m trying to avoid buying multiple different wire gages.
Click to expand...
If your talking about the short red jumpers inside the PDC I use 14ga , if your talking about the daisy chain in the PDC 18 will be fine just gona be tougher to fit, if your referring to the jumper that goes from the Center stack to the PDC then I wouldn’t go any bigger than 22ga. Hopefully that answeres your question.
 
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