In case anyone else tries to add a wire to C1 and C4, the Mouser terminals linked earlier in the thread worked great.
A few tips...
Do C1 first, and unplug the two square plugs to the right of it. Then there is a push pin you can pull out. This lets you pull the connector down to work on it a little easier.
Tuck them away when you start C4. You gotta do C4 completely one handed. I tried having my wife put her small hand and arm through the heatlight switch opening, but she could barely reach it and could only hold it in a position that made it impossible to stab the wire in.
After you get the cover off of C4 with a small screwdriver, stick the connector back into the BCM. Just be careful and don't bend any pins. This trick holds the connector while you jab the wire into it. Then pull the connector out, slide the cover back on with one hand.
Those covers have two sets of slides so it'll let you put it in wrong, but it won't fully seat. If it doesn't seat in easily, pull it back off and make sure you have it in the right slides. It should snap back into place very easy.
Having someone hold a light through the headlight switch opening helped a lot.
Don't use the Dorman H11 connectors for the fog lights. They are brittle as all get out and break easily. I am going to have to remove them and put on some better ones I ordered from Amazon this morning. Here are the ones I ordered, they look a lot better:
https://www.amazon.com/gp/product/B076HDGCGZ/
Here's the harness I made along with some pictures of how I ran the wires.
I used three wires. Green was the right fog light, brown is front left, black is ground. Only the green and brown go into the cabin.
Ground terminal I made
Put the ground up here by the fuse box:
Ran it into the cabin through this grommet. This picture was before I loaded it full of silicone to keep water out.
I didn't get any pictures of the inside because it was dark and I was too pissed off, LOL.