Rockford Fosgate RFK8X 8 AWG Amplifier Installation Kit

The Rockford Fosgate RFK8X is an 8 AWG complete amplifier installation kit for adding a car audio amplifier. It brings together power, ground, speaker, signal, remote-turn-on, and fuse components in one package. This helps simplify planning for a single-amplifier installation where compatible wiring lengths are needed.

This kit is intended for vehicle owners building or upgrading an aftermarket amplified audio system. Its 17-foot power cable and 3-foot ground cable support typical front-to-rear amplifier routing in many vehicles. The included speaker wire, RCA cable, and remote wire help cover the main connections between the amplifier, source unit, and speakers.

Rockford Fosgate specifies full-spec cable that meets or exceeds AWG requirements. The power and speaker conductors use pure crystal-oxygen-free copper construction, with stated strand counts for the 8 AWG and 16 AWG wire. This construction is designed for dependable signal and power transfer in a mobile-audio installation.

An AGU fuse holder and included 40-amp fuse are supplied for the main power run. Appropriate wire-termination hardware is also included to help make the required cable connections. Brass components are used within the kit's termination hardware.

The RFK8X fits systems that require 8 AWG power and ground wiring and a single twisted-pair RCA signal connection. Verify the kit's 40-amp included fuse and 8 AWG wiring are appropriate for the amplifier being installed before purchase. For larger or multi-amplifier systems, select wiring and fuse protection based on the amplifier manufacturer's requirements.

Key Features

• 8 AWG Power Wiring: Provides 17 feet of power cable and 3 feet of ground cable.
• PC-OFC Conductors: Uses pure crystal-oxygen-free copper cable construction.
• Full-Spec Cable: Meets or exceeds stated AWG requirements.
• Twisted-Pair RCA Cable: Includes one 20-foot signal cable for amplifier input connection.
• AGU Fuse Protection: Includes an AGU fuse holder and 40-amp fuse.
• Termination Hardware: Includes appropriate hardware for completing cable connections.

Design & Installation

The RFK8X combines 8 AWG cable for the main power and ground paths with 16 AWG speaker wire for amplified speaker connections. Rockford Fosgate lists the 8 AWG cable at 8.36 mm² with 735 strands and the 16 AWG cable at 1.31 mm² with 65 strands. The kit also includes brass termination components and a twisted-pair RCA signal cable.

Route the power cable from the battery through the included AGU fuse holder, using a protected path through the vehicle. Keep the ground cable as short as practical and connect it to suitable bare vehicle metal, then route RCA signal wiring separately from power wiring where possible. Confirm amplifier current requirements, fuse requirements, cable routing, and connection hardware suitability before installation.