There's only one person in my mind that has done this but I doubt he'd chime in since I havent seen him around in a while...ProjectRDM. If you PM him, he'll probably cuss you out...
Actually, after searching for a bit...
#/f/s-chassis/412587...eadlights.html
#/f/s-chassis/228096...eadlights.html
Switch you'd need is the one on the left IIRC.
