I am trying to wire some guages so that they come on when I turn on my parking/headlights, and guage lights. I was wanting to know which wires do I tap into?

 

u can tap into i beleive the dimmable light control wire, which is a postive wire that lowers and increases voltage according to how far the wheel for your intrumentation lighting is turned..that way your aftrmarket gauges will dim and brighten with all the other cluster lights

 

i allways tap into the dashlight fuse, it is dimmed the same , all guages dim together

 

there ya go, even easier to find i bet