In other concern its those black plastic tubes that goes frome my horn in to the headlamp and I promise you,, there they conect to your  main wirings!

Here's a pic of the horn I got!

I wonder I cant see any horn but a lot of tape!
To that, my horn is still conected to my main wiring inside the healamp for som purpose.. probably becuse its better in wet conditions?
In any case its a 12 volt horn, the trouble is to find the right wiring to conect it? In any case I tryed to put some fotageges from my 2000 Savage, they have strap  it a lot but in the end its goes inside  my headlamp anyway. Its a 12 voltage horn, put it anywere you like to have it, find the virings anyhow, that comes frome your handelbar!