I have a 2011 GLK and the side marker light socket has pushed into the bulb housing. I can't figure a way to get it out. I've come up with a solution If I wire the bulb directly to the harness connector then attach it to the housing. The problem is , I can't find a wiring diagram of the headlight harness to tell me which wire to splice into for the left side side marker light. any help would be appreciated