Motogadget m button

quick look at a Motogadget m button

[@dewdrop3009]

Huge question on the mbutton,
Should I splice my tail light and brake light wire together, and run 1 wire to the mo button. Sane with the headlight bulb, splice the low beam and hi beam together and route 1 wire to the mo button.
Or should i only use the tail light wire, and low beam wire?