Originally Posted by Craneguy
This isn't home-brew. It's the new mini airhorn with stock horn/highbeam controller from Screaming Banshee. I have the old setup, and this is just the compact version.
They're great. Scared an idiot back into his own lane just yesterday. Excellent tool.
Sorry, what I meant was there was an article in the BMW-MOA magazine last year on how to build a circuit card that would manage the time-delay of a 2nd horn installed on the bike, not that Screaming-banshee was home-brew.
Yeah, I think it's a great idea, I'm going to have to read it closer, but I think it does have a relay built-in which would allow the Banshee to be wired to the battery, and the relay to be picked from the OEM horn....