Inspired by mrbmwx5's DIY of the interior door handle LED mod (thanks for that by the way), I decided to try myself. With the help of the door panel removal instructions on the homepage, and some thinking, here's what turned out.
My favorite mod so far!
The pictures don't do it justice! They look great in person and at night.
The front lights don't travel too far; it travels about 1/3 of the wood trim.
The rear ones are great, they travel to the end and they dim as it does so. I can't keep my eyes off of them!