What does your remote starter thing want from the switch, a negative going or positive going indication?

One side (RD/BK) applies a ground with pedal down, the other (VT) applies a high with pedal pressed, but that is a high coming from the "Start" position of the ignition switch - so good luck with THAT.

Would you mind if I told you that you are adding a device that will make servicing of the car in an "no crank" scenario very difficult? And given that you don't want the car cranking without someone already sitting in the driver's seat and pressing the pedal - I am having a very hard time understanding the point here.