I did some further tests this afternoon. I realized that the yellow wire I was testing wasn't the wire for the starter. Instead the correct wire is on the ignition switch which is located on top of the steering column. Look at the first post here to see what I'm talking about.
Anyways, I tested the ignition cylinder to see if it was moving the rod to the ignition switch, this was working correctly. So now I've narrowed it down to the ignition switch or the starter wire. On the ignition switch, there are 2 plugs, each with 3 wires. One plug is blue and one is black; I have no clue what exactly the black plug is for. The blue one has a yellow, green, and purple wire. My guess is the yellow one is the starter. So I unplugged the blue plug/connector from the ignition switch and I wanted to see if I could jump current from a wire that was getting 12v to the yellow wire. I used the paper clip for this, but I was unsuccessful. The measured the voltage on the paper clip once connected and it was only 0.33. As soon as I removed the connection with the yellow wire, it read 12.78. I tried the other 2 wires. The only one that kept a 12v I think was the purple. Now one reason why nothing was working because I think this actually needs to be plugged in. I'm saying that because once that blue plug was unplugged, no power worked at all when putting the keys into the ignition; no heat, no fuel pumps, no CEL. So I have yet to figure out if it's a wire issue or the ignition switch issue. I might pick up a 12-volt auto test light tomorrow and see where there is current and where there isn't.