The GV Do-It-Yourself Nostalgic Tail Lights for the NB (1998-2005) Miata/MX-5 are the solution to the now discontinued Mazda Porter Tail Lights (that came with the original Garage Vary Tail Lights Kit). It requires some wiring and assembly, but it’s nothing too difficult that a non-mechanic can do by itself. The kit keeps the same exterior look as the original kit, but requires some DIY work to install it. Instructions are available here (NA shown, but same for NB).