Antenna Plug and Locknut for an NB Mazda Miata. The hole in the rear left quarter panel (on the '99-'00 for sure, cannot confirm on NB2 cars) is about 1" diameter. This plug is a .25" tall protrusion, and has a groove for a #119 o-ring for sealing against the fender face.
Highly recommend wrapping this piece in vinyl if printing in not-ABS. PETG will get a bit soft when post-heating the vinyl correctly, but just don't touch it and let it cool down and it won't move.
Print the lock nut flat on the printer surface, and print the plug with the threads pointed up. No supports, I like to use a denser infill since its a short print. Try not to use a raft, it becomes annoying to remove.
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