Haha, please forgive me for asking this, but for some time I have noticed the lights next to the headlights on the inner side, and for some reason never really thought about it until now, but what makes these come on? I don't think I have a bulbs in there but there is wiring going to it. I've never seen a switch or anything and most w124's I see don't have them lit up but I've seen a couple.

Have mercy on me

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-Kevin