Horn problem

[white1j0]

Hit the horn on my '47 Knuckle it barley chirped and the fuse blew, was using a 10 amp switched to a 15 amp and it works fine, I also checked for shorts and found none, whats the best fuse to run on a stock system, it seems like the horn takes a lot more amps then everything else

[RooDog]

I have always used a 20 amp fuse with either 6 or 12 volt. I now use circuit breakere, since the old glass fuses are getting hard to find, and they reset them selves once you fix the problem.....

Or, just temporarily install an amp meter between your battery and ground, turn on all electrical items, and see how many amps are drawn. Add a few to that number and install a matching fuse. Simple, eh?
....RooDog....