I hope people who ride with you don't carry firearms...
To help you get punched several times......

LOL
Put the horn under the seat, wedged into the padding
for a little vibration to accompany the noise......
Slightly to the front...... for a little testicle action..... LOL
If the people who ride with you start to like it,
you can ebay a kit and sell it .......... LOL.....-Bob