Unkown Switch On A Rocket.

There's a black switch just forward of my ignition key on a Rocket 3, does anybody know what it's for, I pressed it and nothing seems to happen.

 

The heated grips switch is on the handlebars.

 

I finally found out what it's for, it's the switch for the fog light that I didn't even know was there, I never noticed the fog light because when you stand next to the bike it's hidden by the Givi topbox.

 

That's the fog light, It's not easily seen when you are near the bike.