You are not placing any +5 AUX (Fuse F2) to either of the joysticks, there is no electrical flow through the joysticks!
Also Note that when programming with this setup, joystick 1 would be using x=p2_x, y=p2_aux, and joystick 2 would be using x=p2_y, y=p2_wheel, at least with your current design.