Stinger SK6641 4 Gauge 6000 Series Complete Amplifier Installation Kit 4 Gauge 6000 Series Power Amplifier Wiring Kit Designed specifically for car audio systems up to 400 watts Premium power and ground wire provides optimal power transfer Made from 100% oxygen-free copper for a pure uninterrupted transfer of power 6000 Series shielded RCA audio interconnect cables for increased noise rejection