Looking to add a tether Killswitch to my 14 Polaris Sportsman 400 H.O.

I would like to add a tether kill switch to my 2014 Polaris Sportsman 400 H.O. I can’t seem to find one that works with it. I’m kinda new as the ATV thing and would like some advice. Does anyone know of a company that makes one that works?

thank you