ok so im thinking of buying a prosport electrical boost gauge and i have seen different things about if you get the green/white one you can somehow wire it to get all three colors, so can someone please explain how to wire it so it's white during the day and when i turn on the headlights it's green or i can have a switch so i can change it to red a the flick of that switch. Also i plan to mount it on top of the steering column if that makes any difference. please help me, im not good with electrical so the more detailed explaining the better. thanks in advance.