OK, Jack......
Just spent the better part of 1-1/2 hours lying on my back under the dash, trying to figure out how the hell I wired this thing 10 years ago (probably when I was in a funk from where I worked). I remember that it became complicated enough that I had to document most (but not all) of the wiring in a build notebook. Last I knew, there are eight different relays in there, some in the front and some in the rear.
Removed about half a dozen tie-wraps just to get things moved out of the way so I could see what's up in there...and what a rat's nest THAT turned out to be! Couldn't figure out, even using an official VW service manual, why the heck I had two, extra, brown wires coming from my directional lever and neither one was connected to anything (and they BOTH had male fast-on tabs on the ends).
You know how you've been saying how nice it would be to have a complete user/service manual?? Boy! Would it ever! And I built the damn thing!! Just goes to show about the cobbler's kids going shoeless......
Anyway, I moved a glob of wires this way and that and finally pulled six (yes, six) off, one at a time, shortened each so that it reached nicely and didn't have an extra foot or two of wire stuffed up in there, re-terminated it and replaced it.
THAT cleaned things up quite a lot and, lo and behold, I found an empty, female fast-on with a brown wire attached to ground! Dug out my old build notebooks (why I brought them South I don't know, but they're here) and found that I wired the thing with the dimmer switch giving ground, not +12V, to the headlight dimmer relay - what a revelation THAT was!!! Tried one of the brown wires coming from the directional/dimmer lever and.....nothing. Tried the other one and....Whoo-Hoo!! The dimmer worked!!!!
Finally, I got the headlights working on hi and lo beams, checked the directional light in the dash and THAT was working, too, so gave up for the night (it was after 10pm and my head was splitting from being under there).
Probably find out in the morning that the damn starter doesn't work (again).
I love home-made cars........ {8>(