In that particular picture, I actually have a strip of LEDs on the outside of the headlight assembly behind the raised ridge at the top. I later took them apart to black them out and put strips inside. Eventually I plan to modify another set of headlights by drilling 3mm holes in the portion of the bezel where the strip is mounted then press fit a whole bunch of 3mm amber LEDs. It'll look cleaner and be almost invisible when the lights are off.
Awesome man. I don't think I'm ready for taking them apart but I do like your style. If I did anything I would do something similar to the first picture. That's why I was hoping you had them on the outside. Good Job. Your truck looks great.