OK, so the trouble is in your wiring, not the alternator. As Derek hints at, the small wire can be broken right under the crank inside the harness. However, there are plenty of other spots for this connection to be missing all the way up to the ignition switch itself.

The next most accessible part of this circuit is at the back of the instrument cluster where that red wire connects to pin 11 of the big round plug.

Here's a diagram showing the D+ wiring from battery to alt through the ign switch, but being away from home, maybe you want to make the trip connecting a temporary jumper between D+ and B+. Doing something like repairing the harness under the front of the engine isn't easy on the road. The only problem with using a jumper is you'll need to disconnect it if you park the car overnight, or the small current used by the alternator will discharge the battery. Worth trying to test, though, to see if you get charging again.


--
Art Benstein near Baltimore

Did you hear about the kidnapping at school?
It’s fine, he woke up.