I have a pixhawk 2.4.8 and would like to use the Cascade WP 2.0 to power the rail. I have seen the documentation but I have a question. The SBEC has two output wires one with the 3 wires and the other with power and ground. I am using the Pixhawk for an ardurover project. I would like to control throttle, steering, switch and differential servos from the pixhawk via a companion computer (no RF receiver). Do I connect both of them to 2 Aux pin or only one of them? Do I need the zener diode? The ESC is a Cascade esc.