Consider this air horn install

[Bluetick]

I'd like to install a single air horn on my 3500. I want to avoid attaching the compressor underneath because I live up north where they apply a chemical and salt combo to the roads, destroying anything including the roads. So I was thinking about mounting the compressor to the front wall of the bed where it's protectec by a tonneau. Then running the wire underneath along the frame to the right front fender where I'd use antenna mounts to attach the trumpet. The solenoid would then be protected by the hood and feed it through the firewall (next to the cb antenna coax) to a dash mounted switch.

To me this makes sense. But I'd like some opinions.

 

[ThunderMug95]

Sounds like a sound plan provided you do an excellent protection job on the bed where you drill through. Id put a piece of rubber matting between the compressor and bed, dampen vibrations.

 

[Socalramfan]

Do a search for ‘air horn mounts‘, tons of ideas. I’ve seen what you’ve described. Also have seen versions where the compressor is in a ram box, tool box etc. lots of ideas. I don’t have to worry about the rust issue out here, but keep it high and dry is always a good way to go

 

[Connie Mack]

Not sure what my dbi is but are loud. they are dual horns with the air compressor . I put them under my tool box just because they would not fit in the grill of my 03 4x4 2500 diesel. also was looking at a large air tank, here are the problems with that. must drain moisture all the time, also if you live in the south on the water like I do, not good. so i put everything in the toolbox, ran a button on the dash, works well.

 

[Outbreak]

Just put a solenoid on the tank drain and a switch in the truck. Then you can drain it super easy whenever you want.

 

[hunterdan]

If you're only doing a single horn, you can mount one under the hood by the fuse panel.

 

[Phillyrube]

Electronic air horn like fire trucks?

 

[LugsLeadOut84]

Electronic air horn like fire trucks?

You mean a "stutter horn"? Like on these rigs <--- I think they're, let's call it, "illegal" on non-emergency vehicles (in the same way you can't use red strobes or beacons). You can get electronic ones that simulate stutter horns but the decibel levels are much less and you don't "feel" it when they sound. I've been retired a few years and sometimes still miss being behind the blasts of those horns...

 

[Phillyrube]

Whelen air horn module. Speaker in grill. Push button on floor.

 

[Malodave]

Here is my Nathan Airchime K5LA Train Horn Setup: There is a regulated tool port in the engine bay
and another with the full pressure of 200psi at the Tool Box in the Bed.

I had a Viair on my 2008 Big Horn. There are two 4.5 Gallon Aluminum tanks on the Frame rails.
It took 23 minutes to fill the tanks from 0 to 200 psi. I later picked up a York 210 AC compressor
from a 1973 Mercedes and made Brackets to mount it to the Hemi. I used a Hybrid Pulley on the
Alternator. Half Sepentine and half V Belt. This setup would do the same Tank fill up in 3 minutes
at idle. I plan to use a Sanden Compressor on my 2021 Laramie EcoDiesel.

Malodave

 

[DILLIGAF]

Plenty of room behind the fender

 

[crazykid1994]

Plenty of room behind the fender


View attachment 510554

I’m thinking of this setup on the driver side and using the factory horn wire to power a solenoid for the horns. Planning on mounting a 2 gallon tank in passenger bed side and I have a viair 450 pump to go with it. May go with a bigger tank but have the 2 gallon from a blown compressor