need help ASAP

[ALTRNTV]

i was putting in the reverse indiglo gauges from procarparts.com and i ran into some trouble, it had two wires, the ground wire and the power wire, i connected the ground wire to a screw, but i dont know where to connect the red power wire, can someone tell me where to hook that up to...... i need to know ASAP, thanks

and if giving instructions, PLEASE be detailed.... because I want to get it right the first time