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Gravity

Gravity GR-KIT8R 8 Gauge Amplifier Installation Kit

A complete 8-gauge amplifier wiring kit with gold-plated terminals, shielded RCA cables, and a 60A fuse for clean car audio installs.

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Overview

The Gravity GR-KIT8R 8 Gauge Amplifier Installation Kit is designed to give car audio enthusiasts everything they need to wire a single amplifier into their vehicle's electrical and audio system. The kit centers on 17 feet of 8-gauge power cable and 3 feet of 8-gauge ground cable, sufficient for routing from the battery through the firewall to most trunk or rear-seat amplifier locations. Signal is carried by a 17-foot double-shielded RCA cable that helps keep engine noise and electrical interference out of the audio path, while an 18-gauge remote turn-on wire tells the amplifier to power on and off with the head unit.

Finishing out the kit are 20 feet of 16-gauge speaker wire, a gold AGU fuse holder with a 60A fuse for overcurrent protection, gold-plated ring and spade terminals for secure connections, a snap bushing to protect cable at the firewall pass-through, and cable ties for a tidy install. The 8-gauge wire rating makes this kit appropriate for systems up to approximately 400–500 watts RMS. For higher-output setups, a thicker gauge kit would be necessary. While budget-conscious, the kit covers all the fundamentals and saves the hassle of sourcing individual components for a straightforward single-amp car audio installation.

Key Features

COMPLETE - Build a clean car audio amplifier connection with this 8 gauge installation kit, combining power, ground, signal, remote turn-on and speaker wiring with essential terminals, fuse protection and cable-management accessories.

POWER DELIVERY - Includes a 17 ft 8 gauge power cable and 3 ft 8 gauge ground cable to route battery power and establish a short chassis ground path for compatible car audio amplifier installations.

NOISE CONTROL - The 17 ft double-shielded RCA cable carries low-level audio signal from the source unit to the amplifier while shielding helps reduce exposure to electrical interference in vehicle wiring environments.

VERSATILE - A 17 ft 18 gauge remote turn-on lead provides amplifier activation wiring, while the 20 ft 16 gauge speaker wire supports connections from the amplifier output to vehicle speakers.

FUSED - Gold AGU fuse holder and 60A AGU fuse add inline circuit protection on the amplifier power run; gold 8 gauge ring and spade terminals help create organized cable-end connections.

INSTALLATION - Kit includes a snap bushing for protecting wire at pass-through points plus 10 black 150 mm cable ties for bundling runs, securing loose wiring and finishing a tidy amplifier installation.

Specifications

Brand
Gravity
Model
GR-KIT8R
Wire Gauge
8 GA
Power Cable
17 ft, 8 GA
Ground Cable
3 ft, 8 GA
RCA Cable
17 ft, Double Shielded
Turn-On Cable
17 ft, 18 GA
Speaker Wire
20 ft, 16 GA
Fuse Holder
Gold AGU Fuse Holder
Fuse
Gold AGU 60A
Terminals
Gold Ring Terminal 8 GA, Gold Spade Terminal 8 GA
Accessories
Snap Bushing, Cable Ties

Frequently Asked Questions

8-gauge wiring is generally appropriate for amplifiers up to around 400–500 watts RMS. For higher-powered systems, you would need a thicker 4-gauge or 0-gauge kit.
Yes, the included 17-foot RCA cable is double-shielded to minimize noise and interference from the vehicle's electrical system.
It includes a gold AGU-style fuse holder with a 60A AGU fuse. The fuse should be installed near the battery connection to protect the power cable run.
Yes, it includes power cable, ground cable, RCA signal cable, remote turn-on wire, speaker wire, fuse holder with fuse, ring and spade terminals, a snap bushing, and cable ties — all the essentials for a single-amp install.
The snap bushing protects the power cable where it passes through the vehicle's firewall, preventing the cable's insulation from being cut or worn through by the metal hole edges.

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