●RCA INTERCONNECTS OF SUPERIOR QUALITY: Featured in the kit, these RCA interconnects uphold signal integrity, allowing for a clean and clear audio transmission from your car stereo to the amplifier. Revel in premium sound quality with minimal interference. ●1800W POWER CAPACITY: With a power capacity of 1800W, this kit is suitable for high-performance car audio systems, providing the necessary components to ensure a robust and reliable power supply for your amplifier. ●NICKEL-PLATED TERMINALS: Featuring nickel-plated terminals, the HA-AK4 kit provides corrosion resistance, ensuring a durable and long-lasting connection between the power cable and your amplifier, even in challenging automotive environments. ●4 GAUGE POWER CABLE: The kit includes a robust 4 gauge power cable that efficiently delivers power from your cars battery to the amplifier, supporting an 1800W audio system and minimizing power loss for optimal performance. ●COMPLETE AMP INSTALLATION KIT: The Harmony Audio HA-AK4 Car Stereo Complete 4 Gauge 1800W Amp Amplifier Install Kit offers a comprehensive solution for installing car audio amplifiers, providing all the necessary components for a professional setup.