Hi, I am brand new as of 5 minutes ago to this forum. I bought a 1998 SLK230 for my wife this month and now I really love the car. I just replaced the old yellow headlights with the same Spyder headlights you have. I have a question for you. What does the single little light in the center top do? It has a black and white wire coming off the light going directly into the mercedes flat four wire harness. I believe I have turned on every light on the car but this little sucker does not light. It was a good experience anyway just finding out how some of the lights work, like the fog lights and the rear fog light. Thank you in advance for any help you can give me in this matter.