Look what I found!
Hah, nah, it's not that exciting. BUT, very helpful. Hopefully soon I will order some lights for the interior of the car. I probably won't be using colored lighting as I tend to be more function over form, and some good white light is something the inside of this black interior car (and its piss poor dome light) really need.
The switch is just a door switch from an old pickup truck and I will use this on the glovebox door to turn a light on/off inside. I am also planning on a light in each foot well (front and rear). I may also add some additional lighting in the trunk.
I also thought a lighting strip along the bottom of each door would be great as well, but I'm not sure if there is a suitable wire to tire into in the door.