[CLICK THE SHOW MORE BUTTON] Showing off my 32 gallon train horn air set up, and explaining how everything works. Brought out my S5T, which I turned into an RS5T for the first test of the new set up. The 55 bell is funny though... BWAAAAAAAAAAAAUG!!ooooweeeee.... Why do I do this? This is what I do for fun (as a hobby), I collect & restore old train horns. I do it to preserve the older sounds of railroads that are disappearing in favor of less pleasant ones. I enjoy taking an old horn that no longer works and restoring it to an operational condition. I enjoy the sound the horns make. I want to listen to my horns and make recordings of them, but do so in a way that doesn't harm other people. So its not about having a loud horn on my car, its about having a way to use and make recordings of my train horns. See here: https://www.youtube.com/playlist?list=PL3C01BE98A7F0AF10 The compressor is not modified to run off 12V from the car, I plug it in at home and fill the tanks there. When I am honking the horn the tanks just drain down and do not refill. Do you have a horn on the car all the time? No, only once in a great while, maybe few times a month at the most. Most of the time its just a car with a black roof rack. No train horn. If I don't scare or prank people why do I have train horns? I like trains and railroads, and their history. Collecting and restoring old locomotive horns to preserve the historical railroad sounds is my hobby. Have I replaced the normal car horn with the train horns? No. Do you power the compressor from the car? No, it is powered off 120V AC home outlet, please re-watch the video and pay better attention. Why don't I install a compressor? Because I did not want to modify my vehicle further that I already have, and don't want to tie into and modify operational critical systems (electrical for example). Won't the air tank explode if I get in a crash? No, it is a DOT certified tank, that means it is designed to be partially crushed and not explode. Besides, this is compressed air, not an explosive agent, as soon as there is any puncture in the tank walls the pressure will drop not increase. It is designed for air suspension systems, but it works great for this. Also I do have a safety valve in it. Check out this video to see what happens when a compressed air tank (or can in this case) is crushed. It doesn't explosively fail. https://youtu.be/9gg5eO96or0 Does this affect the gas millage? I seriously doubt it. Look at the horn's mounting bracket (manifold). Its mostly open space! If it does it is insignificant. I almost never have a horn on the car, and when I do I drive less than 20 miles before taking it off again. What is squeaking? The chamber on the 55 bell is very work, and on this type of horn, a worn chamber on the 55 (highest pitched bell/trumpet) often squeaks like that.