It was my VERY FIRST AIR SYSTEM!! But It was a piece of poop. Sorry about the language but I was always had Problems with the air Compressor leaking air. Funny thing It Didn’t come with any Check Valves. Oh well. Good Ridence!! The Video is from 2 years ago when I first rigged up a Semi Horn to my truck!!
http://www.youtube.com/watch?v=p7mz-ZmnIiw
And For those of you who don’t know this is what’s on my truck now. 
http://www.youtube.com/watch?v=axLc7rE-mZw
V-Air Compressors and Hornblasters Kick @$$!!!