Ok, about my truck mods I mentioned last night a little more in detail: the lights on the roof are hopefully going to look exactly like those on a chevy 2500, I've always liked the clearance lights on trucks myself, but I guess we all have our own tastes...
The blue lights won't be the ENTIRE dome light, as yeah that would be a real pain trying to read a road map or something at night... But my trucks got 3 bulbs in the dome, one dull one in the middle that doesnt do much of anything, and one on each side of that that are brighter and useful for reading. All of them have seperate switches. So what I was thinking is keep the two clear ones for looking at literature at nighttime, and replace the middle dim one with a brighter blue bulb (possibly LED's) that I can toggle off and on.