Thankfully, my Service Manual has a rather thorough circuit diagram to help the service man repair the electrical system, and it looks something like this:
However, I thought that the diagram was rather hard to read, so I improved it.
If you note the red line leaving the STARTER RELAY, it leads to the ammeter, which then distributes the power to the rest of the system. After removing that line, the short circuit was gone. I am assuming that the short is hiding under the dashboard. *SIGH* After some careful photography and shoving my huge head into the space, I might be forced to disassemble the dashboard. I hate disassembling the dashboard.