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Rockford Fosgate RFK4X4 AWG Complete Installation Kit

4.775 reviewsSee all reviews

High-quality power and ground wiring, plenty of included components, and easy installs for many vehicles — but verify wire lengths and speaker wire gauge for larger or long-run installations.

Buyer confidence

86%

Highlights

  • 1 Year Warranty
  • 16 AWG (1.31mm²) 65 strands
  • Includes appropriate wire termination hardware
  • Full Spec Cable meets or exceeds AWG (American Wire Gauge) requirements

Key specs

Full specs
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
No

Key specs

Full specs
Battery PWR/GND Gauge
4 AWG
Amplifier PWR/GND Gauge
4 AWG
Fuse Type
MAXI
Speaker Wire Gauge
16 AWG

Highlights

Overview
  • 1 Year Warranty
  • 16 AWG (1.31mm²) 65 strands
  • Includes appropriate wire termination hardware

Review highlights

Based on customer reviews

Well-built 4 AWG amp kit with robust power/ground cables and a complete parts set

High-quality power and ground wiring, plenty of included components, and easy installs for many vehicles — but verify wire lengths and speaker wire gauge for larger or long-run installations.

75 reviews4.7/5 averageUpdated Mar 15, 2026

What buyers praise

  • Stout, flexible power and ground cables with high strand count
  • Comprehensive package with most installation parts included and many terminals pre-crimped

What to watch for

  • Cable lengths can be short for long or multi-row vehicles — measure your run before purchasing
Overview

Complete 4 AWG power, ground and signal wiring kit designed for 2-channel car amplifiers. Supplies the common wires and a fused distribution for a single-amplifier installation.

Best for

  • Buyers installing a 2-channel amplifier who want a single kit that includes power
  • ground
  • speaker
  • RCA signal and remote wiring plus a fuse holder.

Key points

  • 17 ft of 4 AWG power wire
  • 3 ft of 4 AWG ground wire
  • 30 ft of 16 AWG speaker wire
  • 16 ft twisted-pair RCA cable
  • 20 ft remote turn-on wire
  • Maxi fuse holder with a 100 Amp fuse included

Fit and use

Provides the cabling and fused distribution needed to connect a 2-channel amplifier: power and ground conductors, speaker wire, RCA signal cable and remote turn-on lead. Check lengths against your vehicle and amplifier placement before purchasing.

What to know

Kit contents are limited to the listed wires, RCA, remote lead and fuse/fuse holder. It does not include an amplifier, speakers, mounting hardware, or installation tools. Confirm the provided wire lengths and 100 Amp fuse meet your system requirements.

Highlights

Key features

  • 1 Year Warranty
  • 16 AWG (1.31mm²) 65 strands
  • Includes appropriate wire termination hardware
  • Full Spec Cable meets or exceeds AWG (American Wire Gauge) requirements
  • Cables use 100% pure crystal-oxygen free copper (PC-OFC)
  • 4 AWG (21.1mm²) 1,862 strands
  • CTA-2015
  • Includes RCA Cables
  • Includes Speaker Wire
  • Includes Power Wire
  • Includes Fused Dist.
More info

Manufacturer details

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

Additional details

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.

Technologies
CTA-2015

CTA-2015

Rockford Fosgate cables conform to the CTA-2015 industry standard. The standard specifies the exact amount of

Includes RCA Cables

Includes RCA Cables

This amplifier kit includes RCA patch cables. These are the necessary cables used to transfer low-level signal

Includes Speaker Wire

Includes Speaker Wire

This amplifier kit includes speaker wire. These cables connect the amplifier to the speakers. All wires in this

Includes Power Wire

Includes Power Wire

This amplifier kit includes power wire by including necessary cable for both B(+) and GND(-) connections.

Includes Fused Dist.

Includes Fused Dist.

This amplifier kit includes fused distribution. It utilizes a stand-alone fuse holder that can be installed in a

Specs

Specifications

6
Battery PWR/GND Gauge4 AWG
Amplifier PWR/GND Gauge4 AWG
Fuse TypeMAXI
Speaker Wire Gauge16 AWG
Fuse Size100 Amp
Dual Amp Installation KitNo
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