Well, I'm happy I didn't hack the plastic and it came out neat. If I had to do it over, I'd put it closer to the blinker because it's obscured by the clutch cable when I'm in riding position and I have to move my head to see it.. The knob is the controller for the CLS heated grips.
I forget where I bought it. Mail order cost was around $40-45. Datel 0-50VDC
Farkles: Emgo mirrors, T-Bags magnetic tank bag, MadStad w/ Givi windshield, Stebel airhorn w/ Pat Walsh, Blue Seas fuse box, RAM camera mount, Garmin Zumo 550, Givi E460 top w/ LED brake light, Givi E21 sides, Acerbis hand guards, Dynojet PCIII, Superbrace, Pazzo shorty levers, Hot Grips, Elka rear shock, Richland Rick Mirror Extenders, Custom Saddlemen Seat, Murph's Center Stand