Pulled wires back through snap bushing in RH nose rib. Removed wing tip nav/strobe light and disconnected Molex connector. Since the right wing has the landing light at the outer leading edge, thought that string may be accessible through the landing light opening instead of removing the wing tip extension. Although tight, was able to get the string, attach to the end of 1/4" aluminum tube, and route to oval opening in wing tip extension. With Michael's help and string, pulled strobe power wire and strobe sych wire through the RH wing. (page 31A-04, steps 1, 7, and 8).