gauge wiring?

[ONCEBITN]

i need a wiring diagram for aftermarket gauges, specifically i need to know what wires to tap into for the key turning on and where to tap for dash lights

[Ubeyo]

for the key you just pull the cluster out and unplug one bulb. Its pretty much right behind the key light. For the others idk but ive heard people put led's in that b lol

[tlikethedrink]

Clarification...
I installed a boost gauge awhile back. It didn't come with a light- so now I got one. Don't know where to wire in the power to. And I can ground to pretty much anywhere right?

[tlikethedrink]

Got lazy and tapped into the radio. Harness side = black is ground(duh), red and black is lights ON w/dash. I actually twisted the wires in for contact and taped off. Done deal!

http://instagram.com/p/n67D_HS9vV/

Notable: no dim control... Also flashes with dash when locked/unlocked (pretty cool lol)