I found a schematic and instructions on how to make a KITT (night rider) scanner here
2) I've done LED mods with computers but I have no idea idea how I can do this type of thing with a car. Where can I get 12v from on a car?
3) Both computers and cars use 12v but will the difference in current (amperes) make this not possible?Thats all the questions i can think of right now. thanks