Air horn

i have a Katrina 5 gallon air horn from a buddy. i was going to mount it to the roof of my tacoma but i wondered if there was any way i could mount the horn under the hood or somewhere out of sight

 

Last time I checked, my Taco has lots of room under the hood. Mounting something in there may be tricky though. Good luck and Id be interested seeing some pictures of your project.

 

so does mine. its stock so nothings been added under the hood. i don't know if 1.) its a good idea and 2.) if there's anywhere suitable enough to do so