Positive power wire to the positive wire on the LED, and the negative wire goes to the ground, just like an amp. Only difference is that since there is no remote turn on like an amp you can either use the remote turn on wire from your head unit to turn it on, or put a switch to the wire. Because those strips use tiny wire instead of huge wire off the battery there are generally spare slots in the fusebox by your feet to add in a wire or just do the simple thing and use remote turn on for power.