The black plastic conneter is different, you open it and all the wires are connected to terminals that will come loose and get out of order if you're careless .

As Rich said, it's a simple hing to have a paper and pen handy and not the wires and circuit numbers :

White is high beams, 56a

Yellow is low beams 56b

Brown is ground 31

Parking lamp is......? gray I think, no idea what the #is, in VW & Posrches it's a 58 but Mercedes doesn't quite use the exact DIN numbers .

Go get the plastic connectors and do it, you'll be nervous but it's not impossible if you pay attention and only do one side at a time .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better