Shell/Cap Wiring Assistance Needed

OK, I'm not electrically savy by any means. Just thought I'd start with that. I got a Leer 100R used about a year ago. I'm trying to figure out the proper wiring configuration.

Right now, the 3rd LED brake light works when my headlights are off, but not when they're on. My interior dome light is not currently working either.

When I first tried, I had the dome light working, but still not the 3rd LED brake light.

So, there are three wires coming off of the shell harness that tap into the wiring at the brake light. Does anyone know what wires need to tap into what wires at the brake light?

I can go take a look at the colors if need be, I don't know them off hand. Can also get pics if needed.

 

http://www.tacomaworld.com/forum/2nd-gen-tacomas/42821-canopy-brake-light-install.html

Post #5 has all the colors needed.