please needing help on kill switch 80hp mariner

[skintraditions]

hey guys i realy need help on a quick way to wire a kill switch to a 1980 mariner 80hp . i live in alabama and its the law if your on a boat .can anyone tell me witch wires i c an splice into to hook up a kill switch......thanks

 

[Laddies]

Re: please needing help on kill switch 80hp mariner

Hook one wire to the black/yellow terminal of the switch box and the other to ground.