My Shopmate is having issues with its 14 and 10 pin plugs in that it isn't switching on output for either of my feeders. Can someone please tell me where I can add a toggle switch to have control over this function? Mainly for my 8vs. I've included the wiring diagram. Please and thank you. Sanrex Sanstick 140s(hotstart&dig set perfectly)Thermal Arc 185( if you've used one u know)Thermal Arc 400 gmsMiller Shopmate 300( best wire arc!)Miller 75dx feederMiller PassportMiller s22p12Everlast 210stl30a