Is there a good place to find a schematic or list of electrial parts for
the A/C in early Vanagons?  My Bentley book skims over the A/C wiring in
the 86s and later but doesn't seem to do much at all with the earlier A/C
systems and mine is very different from the 86s and up from what I can
see.

Was also wondering if anyone knows offhand what the red wire that goes up
into the pillar to the left of the windshield from fuse 6 or 7 (can't
tell exactly it's so crowded).  There is another wire that follows the
same path for the rear defogger but can't figure out what this one was.
Possibilities I can see from Bentley are the rear speaker on the driver
side, the cabin lights, overhead AC fans?  It's just very taught and I
want to extend it if needed or if it's for the A/C, which I removed I'd
pull it.

Thanks!