VW headlight switch wiring is fever dream of copper spaghetti that looks like it was wired by a raccoon on Red Bull. With this glorious little box, you can yeet the entire cursed switch into the sun and never speak of it again. You now control your headlights like a low-budget Jedi, using nothing but the high-beam stalk. Flick it once for parking lights, twice for headlights, flick it thrice for retina-searing high beams that still work exactly like Ferdinand Porsche intended before Bosch got into the wiring and complicate everything.
