For anyone who saw this before, I updated this because I finally took the time to figure out how to get this to work properly.

On the 97-99, all you have to do is splice into the diode, but for 00-03, there's a backup system, so the former method does not work.

I also got both indicators to work with factory dimming, so if you have burnt out bulbs, I got a picture of the inside where you'll need to replace them!