gauges question (simple i am sure)

[SS Shaun]

Ok so a buddy of mine gave me a few gauges to have for my chevelle. I have one of those 3 in one setup with the water (installed) volts and oil pressure (installed) and a tach. My question is where do you get the power for the gauges to be with the key on? ACC spade on the fuse box? is that where you put the Volts to get the reading as well? What about for the lights? How do you wire it to turn on with the lights?