I have a (US) 2003 Freightliner long and tall cargo. It had holes for marker lights, 2 on each side, but nothing installed in the holes when I bought it. I ordered 4 factory replacements from Europarts. Today I tried to install them, and couldn't find the wiring harness/plugs for any of them. After some extensive searching, I'm not sure they exist. Did someone remove them? Were they only reflectors originally? Kinda confused here... I did some searching but I could really only find talk of people installing aftermarket lights. If it is supposed to have the wiring, where does it come from?