when i bought my boat i noticed the horn fuse was blown so bad i couldnt tell what kind it was and without thinking tossed it. NOW that i am rewireing it i am trying to find the right fuse for it but every fuse i put in keeps blowing right away. Anyone know what i can do?

How big of a fuse are you trying? Horns can draw more current than you might think.

cant think of the size right off my head but i wanna say a 10-20 marine fuse?

What color was it Blue, Red, Yellow, Clear, Green? or was it a glass fuse?

it was a glass tube fuse and the inner connection looked to be a thicker kind from what i could tell from. I know nothing about them fuses! so its all new to me.

Well I can't imagine needing more that 20 amps to run a horn. Sounds like you might have a bad horn or the wires are shorted.

This website says to use a 15 so a 10 might not be enough.
http://www.ehow.com/how_7267819_install-boat-horn.html

But here is some more information too.
http://www.ehow.com/how_6783053_fix-electric-boat-horn.html

thanks bud! ill throw some in when i get to the house this evening.