kx kill switch as start button?

[Exrider434]

i want to wire up a kx kill switch to my 300ex in place of the other button... i am not sure what wires to connect....any help or pics would be great

[Tri-valleyracin]

i did it to my 300ex. looks much cleaner on the bars. yellow red wire to a solid black (there's two solid black wires next to each other) the black and white wire to the other black wire as the kill switch.