[four12]

This wouldn't be that hard to rig up, though it would mess with the lines of the bike:

https://www.youtube.com/watch?feature=player_embedded&v=eEqqvoSD2P0

 

[twkBMW]

Here you go:

http://www.twistedthrottle.com/trade/productview/2137/

 

[heavynikonf3]

Here you go:

http://www.twistedthrottle.com/trade/productview/2137/

+1 !! I bought mine from Aerostich, mounted of course in the fairing. I promise, it is loud enough to make the guy driving an 18 wheeler flinch!! The Aerostich folks call it the "Ear Cannon." But, it is the same Stebel horn. One of the great "anti-cage" devices you can add.

 

[four12]

I think y'all are missing the point of the post...