It seems like the breadboard app i used to make this only has replay DPDT and SPDT. I did some googling and could only find big and expensive relay. It also returned switches as well. I don't think I was searching for the right stuff. I found a site that suggested to use a PMOSFET to help with the switching, but when reading the circuit i sort of got lost
In that diagram I am know 9v connects to the positive and assuming that the down pointing triangle is going to the ground. I do not know where the "BRAKE" and "ON" are connecting to.