I just disassembled my dash again and thought about taking some pictures for ya. Lol
It’s actually really easy, I pulled the whole front off so I could run the wiring for a new dash cam, gps antenna and the microphone for my new head unit.
Anyways, I was looking at that blue strip wondering how to light it up. Can’t be done, it’s molded to the plastic and (I guess) painted blue. However, there is a slim space between the blue and the gray. It might be possible to get some fiber optic piping in there.
I have some on order so I’m sure I’ll update if it’s possible.