You are correct it does need an inline fuse also..good catch n sorry I forgot to add that! !A relay AND a fuse. Please do it right.
I left my stock horns in place and tapped into the horn wire to trigger the relay for the BadBoy horn.
EZ and effective mounting is to zip tie the horn to the radiator grille up front.
The BadBoy is definitely LOUD and will make soccer-mom drop her cell phone.
On mine I use the original wiring for a signal only leaving the amprage job to the relay not to the switch and I ran a good size wire and fuse since this sucker draw power for a good efficiency enjoy...:waving:yes you need a relay, and if you go to harbor freights website you can get the manual that comes with it..the two wires from the bikes wiring plug onto two of the relay posts ,then one goes to positive of horn, other goes to positive of battery on the bike...
:shock: That was simpler than sticking it in the fairing? I did mine in the right front fairing. VERY simple.Here is a link to how I mounted the Bad Boy on my 1500... I like how it's out of harms way, and was simpler for me than trying to fit it inside the fairings...
It was for me, as that space (and the others large enough to hold the horn) had already been filled with previously installed accessories, and I was too lazy to move them again...:shock: That was simpler than sticking it in the fairing? I did mine in the right front fairing. VERY simple.
You can use the bikes wiring, no need for new wires. Just run them through the relay and on to the Bad Boy. The fuse for the existing horns usually works fine, but it won't do no harm to add a separate fuse.
The above will lead you to replacing the horn switch in short order... The Bad Boy comes with wiring instructions... Follow em... You will need a 12ga fused feed from the battery to the relay run the horn... The old horn wire is used only as a trigger to the relay...