Got the air horns installed today. 2 Tanks & horns are off old international semi, for now bought a cheap compressor off ebay, works good 150 psi but its like watching paint dry. I used the traditional lanyard valve mounted on the bottom of the dash. Mounted tanks off the running board with my own mount, looks like they were made to be their. Now its time to have some fun. pics are in my gallery. Thanks everbody for the ideas.