MTX ZN1K04 StreetWires 4 AWG Single Amplifier Installation Kit (Red) 4 Gauge (AWG) ZN1 Series Single Amplifier Installation Kit for Systems up to 1000 Watts, Premium power and ground wire provides optimal power transfer Made from 100% oxygen-free copper for a pure uninterrupted transfer of power, Terminals are nickel-plated for excellent signal transfer, AFS Fuse holder offers ideal protection for entry-level systems True-to-Gauge cables/wires meet or exceed the industry standard of copper required for the gauge size