I know you come off the battery and connect to positive on capacitor and then off positive capacitor to 12+ on amplifier. now currently i have the capacitor ground wire grounding cap and the amp ground wire grounding amp. there has been some discussion about grounding the amp to the - on the capacitor and then just running 1 ground wire from cap to ground. will either way work and is one better than the other?

http://74.50.20.110/Cap-Diagram.jpg
or
http://www.caraudiohelp.com/images/car_audio_capacitor_installation.gif