Crazy loud horns? Unless you've been to India, you don't really have a sense of what an attention-getting horn is all about. During a recent visit I picked up one of these awesome Hella Tri-tone horns and as the link shows they are now also available in China, though at 460 RMB the price is a bit attention-getting. Alas, I've not yet taken the time to install it. I think you can program the horn to blast all three tones simultaneously, which creates ear-piercing dissonance, or to play them in quick sequence -- as in BEE-DUH-LUH BEE-DUH-LUH BEE-DUH-LUH -- which is my personal preference...

cheers (and stay the f&*k out of my way....)
euphonius