Ford Auxiliary Upfitter Switch and Pass Through Wiring: 2019 F350

In this video, I break down the wiring for Fords Upfitter Auxiliary Switches. Thanks for watching! Don't forget to share, like and subscribe for more. And as always...Stay Krazy!
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[@BarryandKaren]

THANK YOU!!!! This is the BEST and most helpful video of the Auxilliary switches, panel, wires and the Passthrough wires (which I did not know even existed!). This is EXACTLY what I needed to know to install a small multi-USB box into the top center cubby of the dash on my F350, for my GPS, TPMS, and two phone chargers, running off the 12v supply from one of the Auxilliary switches. I will use Aux 6 (40 amp) and move that 5a fuse to enable battery supply. This will allow me to power all my dash mounted devices without a bundle of USB cables all over the place, and switch them all off with the flick of one of the overhead switches! PERFECT!!!!

[@k30krazy]

No, thank you Barry! I'm glad you think so. I was looking around when I was wiring mine up and I didn't find any good ones. Most gave some stuff, but not everything and some were nothing but talking as a tech wired stuff for em in the background as they rambled on about their new $80k plus truck they can't work on. Figured I could try and put out some better info. I'm glad it helped!

[@BarryandKaren]

@@k30krazy Subbed and alarm bell set and liked. Thanks again!

[@armedmariner]

Thanks man. You made it easy to understand. I needed this video. I also need a dealy wompus !

[@k30krazy]

I'm glad it helped, thanks for watching!

[@mikegunter1880]

The best and the most informative video on the uplifter switch I have ever seen. I didn't even know I had factory pass though wires. The bulletin was very helpful. Mine is a 2019 Dually Crew F350 with to many Bells & Whistles. Still haven't figured all the buttons out. Thank you.

[@k30krazy]

Thank you Mike, I really really appreciate it! I'm glad it helped you. I noticed a lot of videos and websites were covering half the info or making it confusing. I try to cover everything and make it short and to the point.

[@FlipSideGarage]

Dpes the B+ on that bundle go to batrery power or its a Battery 12v power out. Does it need to be connected to battery?

[@Zach-k2p]

Under the dash driver side their are wires that tap right into the switches. Just a FYI

[@k30krazy]

Ima have to do some digging around. Thanks for the tip

[@stevejames875]

I can do without the annoying fucking music!

[@tylerroszmann7102]

Best video explaining the pass through wires. Helped lots keep it up man

[@k30krazy]

Im glad it helped, thanks for watching!

[@Gchupp]

Love the dealywhompsisis 😂. Thanks for the info bud ,just what i was looking for

[@k30krazy]

Yeah I'm pretty technical lol. Glad it helped!

[@Gchupp]

@@k30krazy lol it did!!

[@bbishop6417]

On my 2021 the owners manual page 552, says the wires are; " Each switch includes a blunt-cut, sealed wire. The wires are under the instrument panel on the right-hand side of the passenger footwell." And in your video at 9:52 those wires are bundled right there in the video as you brush them aside looking for the pass-through wires. They are also color coded accordingly. I also have the same wire bundle coming out of the fuse box in the engine compartment. Might not have to use those pass-through wires.

[@k30krazy]

🤔 Interesting...I'm gonna have to do some digging. Thanks for the info!

[@MattLegler]

I’m wondering the same thing!

[@BarryandKaren]

On my 2017 Powerstroke, those wires are not the Auxilliary switch wires. They are labelled for other functions and the color coding does not match the Aux switches/relays.

[@johngibson1953]

Hey K30 Krazy, great info on the up fitter switches and didn't know pass through wires even existed .Thanks so much

[@k30krazy]

Thanks for watching John! Glad it helped.

[@judb2566]

Good job. This is the only video I've seen that actually discusses the location of the upfitter wires inside the cab. I never would have found them with only the I do provided in the owner's manual.

[@k30krazy]

Im glad it helped, thanks for watching!

[@robertperrey7069]

I have a 2019 F350 and would like to find a passthrough port at the rear of the cab, where I could run a coax to a rear mounted antenna. Would you be able to help with my quest?

[@k30krazy]

I'm sure there's a plug somewhere in the back seat area or back of the cab. When I ran my cb coax I just ran it down through a body plug on the passenger front floor board. I haven't had any issues. Just be careful getting the kick panel out of there...the one peg on the top likes to break. Have to start at the bottom and kinda lift turn and twist out if that makes any sense.

[@olesparky82]

In 2020+ model the upfitter fuse box swapped to the passenger side,

[@k30krazy]

Awesome! Thats where it should've been to begin with lol. Thanks for the info.

[@olesparky82]

@@k30krazy too bad they didn't fix the pass through wires to be more user friendly. I think they actually cut them super short in my 2020.

[@k30krazy]

That was the worst part. They gotta save that few dollars though.

[@moretackle1]

Its a pain in the butt getting the wires out of the taped up position!!! Thanks for giving the location.

[@chrisleggett685]

Why do they want us to pull 40 A through 14g wire?

[@GunsmithLC]

Good video sir, - but, my basic FLIP phone ain't gonna pull up any Ford stuff.. LOL

[@k30krazy]

Aye, that's alright. I'm 24 and although the phone is convenient, I still prefer the computer for a lot of stuff. I see the phone as just another tool in the bag. Thanks for watching, glad you liked it!

[@mainelyfeeders1078]

Have read a lot of stuff on the pass through wires! You explained it well! Thank you so much!

[@k30krazy]

Glad it helped, thanks for watching!

[@moretackle1]

2021 fuse box and wires are on the opposite side of this video but still helps.

[@k30krazy]

Yes that's 2hat I've heard. I think thats where the should be personally. Probably makes it even tighter there though. And oh yes they were a big pain lol. Thanks for watching!

[@sheldonkoehn443]

Thanks for the video and the time for helping others !!!!

[@k30krazy]

No problem! I try lol. Thanks for watching!

[@jrwethington320]

Great job explaining the up fitters switches really helped me out thanks a lot

[@k30krazy]

Thank you and thanks for watching! I'm glad it helped. Every video I would find gave you half the info if that so I tried to do better.

[@apache5612]

What I don't understand is that why are there only 4 wires but 6 switches!

[@k30krazy]

I'm guessing they don't expect you to need to use every switch inside the vehicle. Im not sure.

[@BarryandKaren]

Those wires are unrelated to the Aux switches. The Aux switches are usually used for external devices, like lamps, pumps, etc . Ford probably doesn't think anyone needs/wants to pass through more than 4 circuits to the inside from the engine compartment.

[@rcmotox23]

Good description and video on where the wires are. Thank you

[@k30krazy]

I appreciate it, thanks for watching!

[@darrylm3627]

Great Tips, Good Stuff 👍 Thanks!

[@k30krazy]

Glad it helped! Thanks for watching Darryl!

[@rcdixon76]

A++ video. Excellent work amigo.

[@k30krazy]

Thanks a bunch Chris I do appreciate it!

[@2mbrand]

Great work

[@k30krazy]

I appreciate it, thanks for watching.

[@gregktm8907]

Thank you sir.

[@k30krazy]

You're welcome, thanks for watching!

[@mikegunter1880]

I also have a real 1979 k30. Call her Blue. Currently trying to bring back up to being a desert rig at gold sites in Arizona.

[@k30krazy]

I love it! That sounds super cool and like a lot of fun. I've always liked the 70s models...something about the round headlights 😍 lol.