Try following it. i just did on a used Abarth a few days ago which lead to 2 aftermarket light bars behind the rear bumper grill in the rear and 4 after market lights in the front behind the bumper grill, and 2 after market switches in the cabin. The bulbs in the rear were mostly burned out so i replaced them with one light bar today. Only 1 of the 4 of the light work in the front work. Gotta take the front bumper off to assess the front ones. Good luck.