Ok the story gets better... (obviously worse)
anyway, today I replaced the battery and the loose negative terminal, did several checks with the voltmeter, even though some of the bars on the digits are missing, but it still works. Standing still (no key, no engine running) the volt gauge reads 12 volts.
Put the key in, turn to ON position and the car will do one of two things, 1) continue as normal with a very slight voltage drop, or 2) go down to ZERO volts immediately.
With the new battery I did hear the selenoid on the starter click a little, as if it were trying to engage the flywheel, but no turn-over.
I think there is a short somewhere... I hate electrical gremlins. I checked all my fuses, I looked at all the connections I have made in the past and double checked with my multimeter... I'm soo out of ideas right now!
I just remember that I DON'T remember hearing the relays clicking under the dash when I switch the key to the on position... now what relays are supposed to click again? ugh I hate this car!!!