Was going to switch back to OEM headlights until I saw how the PO did the install. I thought they were supposed to be plug and play? I don't know exactly what, or why he did what he did. See video. I have only a basic understanding of wiring and want your thoughts or any advice you might want to give. [The right side ballast had quit and when I saw how it was wired I bought a new set. In the distant future I might want to try to rewire it back to stock but definitely not this year]