I had those Light Tubes/Neons in my Probe. had them in Blue originally, then switched out to Red... Don't have pics but I liked them...
What I did...
Needed Supplies:
1.) Neon Light Tubes
2.) Single Throw Toggle Switch
3.) 14ga 2-Conductor Wire
4.) Inline Fuse
5.) Female Quick-Disconnects
6.) Battery Terminal Connector (optional)
7.) Wire Crimps/Cutters/Strippers
8.) Drill
Instructions:
1.) Remove seats, Screw Tubes into floorboard.
2.) Cut off Cigarette Adapters. You will see that one wire is clear and the other will have a white stripe (ground).
3.) Mount the toggle switch wherever you want. I mounted mine near the bottom of the dash so it's easily accessible and out of view.
4.) Splice all POWER wires from the Neon Tubes into one female disconnect for the (+) section of the toggle switch (depending on your mounting location, it may be necessary to extend the wiring).
5.) Repeat for all GROUND wires and connect to a ground on the chassis. Also run a GROUND from the toggle switch (-) post to the chassis if equipped with a GROUND terminal. Can be ground to same location as wiring if desired.
6.) Now crimp a female connector on a long piece of wire, and attach it to the (12v Lead) section of the toggle switch. Where you want to draw power from determines the length of wire needed. I drew power directly from the battery so I needed about 5 feet of wire for this. Put the inline fuse in line right after the battery or power source of your choosing. This way if something happens you won't burn up your lights or toggle switch.
7.) Turn them on a watch them glow!