I'm kinda looking for the same. I saw the system offered on e-bay and wondered about it. The one I saw was a blue system that went under the dash and seats. At least that's is what the picture showed. What concerned me was that is looked to be a generic set up.
I do know some guys here in FL that have developed a neon control box and they are using it for several applications. The latest is for front grill and louver glow. It really looks awesome. The box they developed can operation on one color, several colors or scroll through a 256 color scheme. They are also hooking the box up with things like the stereo so it will surge with the sound or with the engine throttle so it will surge with the engine.
Check out
http://www.lxforums.com/board/showthread.php?t=42311