So I just installed a system in my 2003 GMC Envoy. I got a Pioneer In-Dash Touch Screen as the head unit. The power cable running from the battery is a 5+ gauge cable connected to a 500K Capacitor, (2) 1,000 Watt Sony Xplod Amps, and 2 Alpine Type S 12" subs. I put on a song I've been listening...