I would like to install a tether kill switch on the kfx. I was going to get a Pro Design setup, and wire it to the coil but have found out this is not a good route to use on the kfx. I tried googling this and everything I'm finding is old and some of the parts they were using have been discontinued in the last few years. So if I want to install a tether kill switch on my kfx here in 2021 its appears my options are much more limited. I would like to go with the simplest, and easiest setup if possible, while also not having to worry about frying anything.