Thank you guys,

Gilly, you're right, no power on horn, left fog light and left side amber marker light. I checked the fuses under the hood and left side dash but found nothing's wrong. Wires looks okay. What else should I do??

Fred, I called MB dealer, manual is about $25. they wanted to know specifically which one I need so they can order for me. I guess I need to show them what I have to know what's missing

No success on head rest as well.

Frank