Head unit: Sony CDX GT34W - radio / CD / MP3 player - In-dash car stereos - CNET Archive
Amp: PowerBass Autosound ASA 600.4x 4-Channel A/B Amplifier | PowerBass USA
Subs: db212-2 Car Subwoofer from Polk Audio
The power is hooked up to the fuse relay. On the left side of the car is the power, remote, and ground. The right side is the rca cord.
Wired with a Kicker amp kit.
The ground is hooked up to a bare metal part under the rear seat.