VEVOR Train Horns Kit, 4 Trumpet Air Horn Kit, 150dB Train Horns for Pickup Trucks, 12V 120 psi Air Compressor 0.8 Gal/3 L Tank with Gauge for Any 12V Vehicle Car Truck Train Van Boat

I bought mine and took it to my car audio shop and they installed it where my spare tire went in my truck, and it is hooked straight to the horn. It's louder than any stock horn I've ever heard. I'm buying horn blasters next because I want more

I think you could but you are still going to need a switch to activate the horn.

So what I did is I wired the horn with a inline fuse 30 amp and a relay that comes in a kit for lights and I bought it at O'Reilly's it's a switch for four different lights but you only need the longest one and it from the horn to my battery and I put it in my dash and then I got the same wiring harness use the long p… see more So what I did is I wired the horn with a inline fuse 30 amp and a relay that comes in a kit for lights and I bought it at O'Reilly's it's a switch for four different lights but you only need the longest one and it from the horn to my battery and I put it in my dash and then I got the same wiring harness use the long part of it got rid of the rest of it kept the 30 amp fuse it kept the relay and hooked it directly to the pump then to the battery as well then to the dash That way I could shut the pump on and off when I want and I did it that way I cut the buttons off because they're not horn buttons and I just replaced them with regular horn button from off the shelf from O'Reilly's both wiring harness both buttons cost me less than $40 but you really need the 30 amp fuse and the relay on both harnesses. Very simple to wire up both pump and horn. The horn and pump are only connected by the air line the wiring is completely separate from each other. see less So what I did is I wired the horn with a inline fuse 30 amp and a relay that comes in a kit for lights and I bought it at O'Reilly's it's a switch for four different lights but you only need the longest one and it from the horn to my battery and I put it in my dash and then I got the same wiring harness use the long part of it got rid of the rest of it kept the 30 amp fuse it kept the relay and hooked it directly to the pump then to the battery as well then to the dash That way I could shut the pump on and off when I want and I did it that way I cut the buttons off because they're not horn buttons and I just replaced them with regular horn button from off the shelf from O'Reilly's both wiring harness both buttons cost me less than $40 but you really need the 30 amp fuse and the relay on both harnesses. Very simple to wire up both pump and horn. The horn and pump are only connected by the air line the wiring is completely separate from each other.

Direct wire, it comes with a fuse

I would always use a online fuse when you wire anything directly to the battery