I fabricated a Piper style ground power receptacle per Bob Nuckols' design during the tail cone assembly. Today, I installed a gasket and prosealed the receptacle in place. The proseal is simply to act as a moisture barrier. I then fabricated #2 cables for the ground power, primary power and ground circuits. I need a few more terminals to finish the work. I also installed over voltage module to the ground power contactor.
Looking down on the ground power recptacle. The over voltage module is under the orange tape.