You need to use the Toyota solenoid. Easy, if you have a simple on/off key switch, just run a wire (14 ga should do it) from the “on” terminal of the switch to the foot switch, then on to the Toyota solenoid “s” terminal, battery cable to large Toyota terminal. You will probably need large ring connectors for the foot switch. Turn the key to on and hit the foot switch to activate the Toyota solenoid, good to go.