Adding 12v to back end of 23 Yukon Denali

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

OP
OP
BobHolthaus

BobHolthaus

Member
Joined
May 2, 2023
Posts
91
Reaction score
45
'You'll put your battery out with that thing!!'

Be careful that whatever you plug in back there doesn't have the ability to run your battery down. Most stock things are run through some sort of timer that kills power after a few minutes.

.
Yes, that’s exactly my concern trying to tap any OEM wiring or fuses, that the computer will prematurely shut the circuit down and the fridge will turn off. That’s why I’m not going to run a fresh, properly gauged wire with inline fuse directly to the battery, bypassing all internal ORM systems. I think that’s my safest bet to run a fridge freezer (which we don’t do daily, but probably at least once a week). Thanks for that reminder!!
 
OP
OP
BobHolthaus

BobHolthaus

Member
Joined
May 2, 2023
Posts
91
Reaction score
45
Okay, I started this project today. Spent 3 hours on it, only to realize that the 20’ of 10 gauge wire that comes with the ARB kit is too short. You need about 25’ of wire; I will use Molex Perma-Seal connectors to extend my wire. I’ll post when it’s all finished, but I fished the wire all the way from front to back through the main frame rail. This is an easy install, with a dedicated 15 amp fuse coming right off the battery. Let me know what questions you may have from my pics.

I’m running two 12v outlets, a standard outlet, and an ARB locking outlet. They will be wired in series. The wire is 10 gauge but I had hoped the 20 feet with the $58 ARB kit was enough. Btw, 10 gauge wire can handle 30 amps, and to be safe, you typically want to stay at 80% of that 24 amps). A 25 amp fuse is good for the circuit, witha 5 amp margin before a wire melts and starts on fire. I had to fish using 3 holes in the frame rail, but it worked great. Caution: that frame rail is full of black goopy stuff; be prepared to clean your fish tape and wear protective gloves. I showed the hook tools I used to get my fish tape out of those holes. I used 18 gauge as my fish wire; I’m likely going to leave it in the frame when finished in case I want to run anything else from front to back (like aux LED reverse lights!)

What else can I tell you? More pics when I finish. My 20’ of wire ended at the rear frame opening, where I will lengthen it. Doing it again I’d just get 28’ of 10 gauge wire and put it in flex loom (although fishing the one single 2 conductor wire made it easier).
 

Attachments

  • IMG_8226.jpeg
    IMG_8226.jpeg
    308.7 KB · Views: 15
  • 2E5B7D58-7D6D-4BFF-A9D7-7DEC78FDC34E.jpeg
    2E5B7D58-7D6D-4BFF-A9D7-7DEC78FDC34E.jpeg
    273.8 KB · Views: 13
  • F936F73D-7446-48D5-986A-CE3BDDA5EA36.jpeg
    F936F73D-7446-48D5-986A-CE3BDDA5EA36.jpeg
    290.9 KB · Views: 15
  • 5A39F91B-B405-4D3F-A29C-A45EF5CCC21F.jpeg
    5A39F91B-B405-4D3F-A29C-A45EF5CCC21F.jpeg
    354.9 KB · Views: 15
  • 90FED671-A150-4966-BEC5-473DA0A93D28.jpeg
    90FED671-A150-4966-BEC5-473DA0A93D28.jpeg
    408.9 KB · Views: 13
Last edited:
OP
OP
BobHolthaus

BobHolthaus

Member
Joined
May 2, 2023
Posts
91
Reaction score
45
That’s a view looking up from rear fuse box. Used a 1 1/8” bit for the two holes. My wire will go out the bottom of that area at the bottom of the jack, through a rubber grommet (may go out the side if I can get to it with a drill bit, so the water from the tire isn’t splashing directly at the hole I’ll drill).

(Why can I only post 5 pics at a time?)
 

Attachments

  • IMG_8230.jpeg
    IMG_8230.jpeg
    304.6 KB · Views: 10
  • IMG_8224.jpeg
    IMG_8224.jpeg
    807.2 KB · Views: 11
  • IMG_8228.jpeg
    IMG_8228.jpeg
    271.2 KB · Views: 10
  • IMG_8229.jpeg
    IMG_8229.jpeg
    338.5 KB · Views: 9
  • IMG_8231.jpeg
    IMG_8231.jpeg
    358.9 KB · Views: 12
OP
OP
BobHolthaus

BobHolthaus

Member
Joined
May 2, 2023
Posts
91
Reaction score
45
Pic of the fuse box where I drilled a hole in the cover to feed the positive wire in. Negative went to stud on fender. Then covered it with flex loom. Sorry, I forgot to take pics of it fed across the engine bay. I’ll post those when I finish the project this week.
 

Attachments

  • IMG_8233.jpeg
    IMG_8233.jpeg
    373.5 KB · Views: 12
  • IMG_8234.jpeg
    IMG_8234.jpeg
    379.9 KB · Views: 13
  • 4AB5D309-25B7-4538-9B39-30C6D8956D3F.jpeg
    4AB5D309-25B7-4538-9B39-30C6D8956D3F.jpeg
    381.4 KB · Views: 11
Last edited:
OP
OP
BobHolthaus

BobHolthaus

Member
Joined
May 2, 2023
Posts
91
Reaction score
45
Did you run the wire in wire loom all the way back, or do you just have a 12V wire w/ only insulation laying inside the frame?
I only used loom at the front end and at the back end, where it came out of the frame. Up front I ran loom from the frame all the way to the battery, to make it look good. My conductors are individually sheathed, and then both are sheathed in another layer of covering, which I recommend,so it’s double sheathed (the look being the third layer from the copper). Inside the frame shouldn’t be an issue. All things considered, if you have enough loom (I didn’t), you might as well wrap it the entire length. There should be no tight space limitations inside the frame. I had some similar wire inside the frame of my Jeep JK for 10 years with no issues. But make sure you have a fuse as close to your battery as possible.
 
Last edited:
OP
OP
BobHolthaus

BobHolthaus

Member
Joined
May 2, 2023
Posts
91
Reaction score
45
And sorry, I finished the project but forgot to post pics. I will tomorrow. I ran my loom right across the top of the engine bay, below the windshield. I drilled holes in those verticle pieces of plastic at the top of the engine bay and used zip ties.
 
OP
OP
BobHolthaus

BobHolthaus

Member
Joined
May 2, 2023
Posts
91
Reaction score
45
More pics
 

Attachments

  • IMG_8390.jpeg
    IMG_8390.jpeg
    310.4 KB · Views: 9
  • IMG_8392.jpeg
    IMG_8392.jpeg
    218.9 KB · Views: 10
  • IMG_8393.jpeg
    IMG_8393.jpeg
    350.1 KB · Views: 10
  • IMG_8394.jpeg
    IMG_8394.jpeg
    425.3 KB · Views: 9
  • IMG_8395.jpeg
    IMG_8395.jpeg
    427.5 KB · Views: 10
OP
OP
BobHolthaus

BobHolthaus

Member
Joined
May 2, 2023
Posts
91
Reaction score
45
More pics. How do I get past the 5 pic limit?!
 

Attachments

  • IMG_8396.jpeg
    IMG_8396.jpeg
    417.1 KB · Views: 6
  • IMG_8397.jpeg
    IMG_8397.jpeg
    364.8 KB · Views: 7

Forum statistics

Threads
130,398
Posts
1,831,776
Members
94,010
Latest member
coachkeifer

Latest posts

Top