Thank you John, and yes it makes me nervous when I cut into expensive things.
I could feel the wooden frame behind the gas cap fill neck and I did not want to drill into that and it hard to be far enough forward to not interfere with the gas cap.
Masking painters tape, measure and mark, tap a starting point into the surface, drill small pilot hole, drill larger hole to fit the 3/8” lamp stalk, file edges to allow a tight slip fit, deburr, paint the raw edges and let dry (hair dryer helps), I used a rubber grommet and cut it in half for the gasket, slide lamp in and put a stainless steel fender washer on the underside and mounting nut with lock washer tighten from below and hook wiring to MMC unused receptacle wiring.
When something looks like it belongs in that location and is a useful safety item then I am inclined to do it. The last lighting project will be fender lamps tied to the turn signal circuit. That will involve drilling into the fenders (mudguards).
This is very cool! Just FYI to all though, it will preclude the fitment of new style a MMC luggage rack.
