I do not feel like taking the cover off to snap some pictures on my Hunter 31 but if I can help you with a verbal description: I mounted the rudder sensor upside down. Choose on of the existing holes on the quadrant and connect the rod there. Then turn the sensor upside down and start positioning it so that the rod is approximately parallel to the wires. Mine ended up outside the wires with the arm pointing to port. There is enough room under the cover for the arm to move without touching the cover side. Put one screw in and test for the full movement, adjust, then finish all the screws.
SV Pizzazz