After application of a test light and cleaning some bulb bases and sockets I now have everything working except the left side running lights front and rear (well, and the standing lights but I'm not too worried about those right now). There is no power to the front or rear lights on the left side. Is there a junction where the left and right sides split? I am working with a wiring diagram from a 1977 300D which appears to be very similar but I don't know where the location would be for a junction box to split power to the left and right side running lights. Any help appreciated. This is the only thing keeping this car parked right now.
Thanks!

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1983 M-B 240D-Gone too.
1976 M-B 300D-Departed.

"Good" is the worst enemy of "Great".