Wanting to wire cb radio to upfitter switch. Manuel says the wires are behind panel on passenger floorboard. Located wires but none of them are labeled for an upfitter switch. Any idea which wires are to be used. On my 2013 they were above park brake and very accessible and labeled

 

On the newer trucks they are under the hood, tucked under the fuse box on the drivers side near the fire wall. The owners manusl is wrong.
Do a internet search and you should get plenty of videos

 

Dustinburr, there are pass through wires on the passenger side, coming through the kick panel. You will have to run wire from the upfitter wires (located where the above post said) to the pass through wires by the firewall. Then, inside the vehicle, attach wire to the pass through and then to your radio. Seems kind of crazy to do all that when the radio might be mounted right next to the upfitter switches.

 

I started another similar thread the other day titled: wires..., here is my opening post:

Behind the kick panel of my 2019 F350 are two bundles of blunt/sealed wires...one with four, if I recall correctly, and the other with seventeen...I believe the bundle of four is the same old pass-through wires that have existed in previous models, but what about that large bundle? Thank you.

I have received a few responses, mhoefer came the closest to an explanation, but I am still clueless as to what these blunt-cut wire bundles are exactly...thanks.

 

Here is the Ford bulletin for the 2017 and newer Upfitter Switches

https://madocumentupload.marketingas...1fb63&v5=False

 

Thanks, but addresses probably only the four pass-through wires for me...

 

Did you even look at the link?.....answers a lot more if you go look.

 

I did...four pass-thrus and six upfitters, what about the bundle of seventeen if which I am inquiring?