Cleco'd the wingtips into position. First installed the nav/pos/strobe units to the fiberglass wingtips. Then connected the wires and cleco'd 'em into position.
Next, I made up a quickie test harness. I am using fuselage ground for the lights, so I ran a section of safety wire from the wing to the fuselage. Next, trimmed the ends of a long piece of wire and connected it one terminal at a time for each light function to ensure that the wing-internal wiring was correct. All functioned OK.
