Connected common harness to wing harness. Installed Molex for ground wires from wing to wire leading to firewall ground plate. Secured ground wires to fuselage and pre-installed nutplate grounds. Installed OAT on right wing near roll trim motor access plate. Had to drill out and some of the screws. Installed lightening hole trim near wiring harnesses and secured all harnesses with cable ties. Installed molex and reconnected wing tips. Attached aileron horn to actuator rods. Recalibrated flap travel with digital level. Flaps are still not progressing to next relative step as expected. Will check again after GMU 22 installed and ADHRS calibrated since my working theory is that the GAD 27 requires a valid air speed for the flaps to work properly.