Power cable from battery to cap +, cap + to amp +, cap - to metal ground. Next you need to charge the cap. I have heard of charging it just by running your car for a while with the system off. When I charged my cap I put a resistor in the place of the main power cable fuse for about 10 minutes. The only problem is I can't remember what the specs of the resistor need to be. The capacitor should be installed as close to the amp as possible.