I've been trying to resolve my electrical problems and here is what I found today.

1. I was able to directly power my gauges and they work! I thought I'd killed them a couple of weeks ago.
2. I'm not getting power on the brown gauge feed wire or the radio power wire with the ignition in any position.
3. Other 12v switched sources have power as expected.
4. Fuses have continuity - not blown.
5. Wiper motor worked when powered directly using Power Probe II (not fried!).

With a volt meter, I see a brief jump in voltage on the brown gauge feed and radio power wires when the ignition is switched on, but then right back to 0 volts.

Any ideas on if a bad ignition switch could cause the issues I'm seeing? I have a new one I ordered from FF, but don't want to replace it if it isn't the problem.