I got the kit, from mbparts.com It's the kit with 4 plugs, a relay, and a few short jumper wires.

I am trying to do the install, and the instructions are helpful for the most part...

I have a 1977, 240d 123.123


It tells you,
brown to terminal 31(earth)
Read to terminal 15-Fuse Box
Black to 50-Fuse Box, or starter.

Obviously, I know where Brown goes... And I can find the starter

Where the heck is Terminal 15??!? The fuse box goes Up to 14..

Secondary, if I wanted to connect the starter in the fuse box, where would 50 be?

Any guidance would be helpful

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`77 240D Perpetually-185k miles