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Rockford Fosgate – 4 AWG Complete Installation Kit RFK4X

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4 gauge complete power, ground and signal installation kit for a 2-channel amplifier.

Kit includes 17 feet of 4 AWG power wire, 3 feet of 4 AWG ground wire, 30 feet of 16 AWG speaker wire, (1) 16 feet twisted pair RCA, Maxi fuse holder and fuse, 20 feet of remote wire, 100 Amp fuse.

Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026

Features

  • 4 AWG (21.1mm²) 1,862 strands
  • 16 AWG (1.31mm²) 65 strands
  • Includes appropriate wire termination hardware
  • FULL spec cable – meets or exceeds AWG (American Wire Gauge) requirements
  • 100% Pure Crystal-Oxygen Free Copper (PC-OFC)
  • 1 Year Warranty

Specifications

  • Battery PWR/GND Gauge
  • 4 AWG
  • Amplifier PWR/GND Gauge
  • 4 AWG
  • Fuse Type
  • MAXI
  • Speaker Wire Gauge
  • 16 AWG
  • Fuse Size
  • 100 Amp
  • Dual Amp Installation Kit
  • 4 AWG (21.1mm²) 1,862 strands
  • 16 AWG (1.31mm²) 65 strands
  • Includes appropriate wire termination hardware
  • FULL spec cable – meets or exceeds AWG (American Wire Gauge) requirements
  • 100% Pure Crystal-Oxygen Free Copper (PC-OFC)
  • 1 Year Warranty

Overview

Kit includes 17 feet of 4 AWG power wire, 3 feet of 4 AWG ground wire, 30 feet of 16 AWG speaker wire, (1) 16 feet twisted pair RCA, Maxi fuse holder and fuse, 20 feet of remote wire, 100 Amp fuse. The Rockford Fosgate RFK4X is a professional-grade, all-inclusive 4 AWG amplifier installation kit designed for high-performance car audio systems. It is engineered specifically for enthusiasts and professional installers who need to hook up a high-power mono or multi-channel amplifier up to 1000 Watts RMS without risking voltage drops or audio distortion.

Key features

Power, ground, and speaker wires use Pure Crystal-Oxygen Free Copper (PC-OFC) to eliminate voltage drops. True-to-Spec Gauge: Meets standard CEA-2015 specifications, ensuring honest conductor thickness without oversized insulation jackets. The 4 AWG power wire uses ultra-fine copper strands to maximize conductivity and overall current flow.