Volvo 2MD Cutoff (Kill) cable

I have seen MD2's with a separate engine cutoff (kill) cable, and I want to install one on my MD2. Can anyone send me a photo or a drawing of how the (kill) cable interacts with the throttle cable? Right now to kill the engine I simply take the throttle all the way down, but this opens up the possibility of accidentally killing the engine in a careless maneuver. I have separate throttle and shift controls and an MS type reverse gearbox.

Mannie, S&S Swan 36068 NORA