Gravity

Gravity BGR-KIT4-R-PK2-3000W 4 Gauge Amplifier Kit

3000W

Complete 4 gauge amplifier wiring kit with thick power cable, shielded RCA, and inline ANL fuse.

$34.99*
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*Price sourced from Amazon.com. Last updated:Oct 21, 2026.Price and availability are subject to change — details.

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Overview

The Gravity BGR-KIT4-R-PK2-3000W is a complete 4 gauge amplifier installation wiring kit designed to simplify the process of connecting an aftermarket amplifier in any vehicle. The kit centers around 17 feet of 4 gauge power cable — enough length to route from the battery to the trunk in most cars and trucks — paired with a 3-foot 4 gauge ground cable for a solid chassis connection. An inline ANL fuse holder with a 200-amp fuse is included to protect the electrical system and amplifier from overcurrent situations.

On the signal side, a 17-foot double-shielded RCA cable carries audio from the head unit to the amplifier while minimizing electromagnetic interference that can introduce noise into the system. The kit also includes 17 feet of 18 gauge remote turn-on wire to trigger the amplifier with the head unit, and 20 feet of 16 gauge speaker wire for connecting the amplifier to your speakers. All necessary ring terminals, connectors, and installation accessories are included, making this a true all-in-one solution for professional installers and DIY enthusiasts working on cars, trucks, motorcycles, RVs, and ATVs.

Key Features

POWER - Gravity PK8 4 gauge amplifier wiring kit is designed to support car audio amplifier installations rated from 3000W to 6500W, providing a substantial cable size for high-output sound system builds.

VERSATILE - Built for audio upgrades in cars, trucks, motorcycles, RVs and ATVs, this amp installation kit helps bring power wiring together for custom stereo projects across a wide range of vehicle types.

INSTALLATION - A practical choice for professional installers and DIY audio hobbyists, the PK8 kit simplifies sourcing core amplifier wiring for new builds, system refreshes, and component replacement work.

4-GAUGE - The red 4 Ga power cable format offers a bold, easy-to-identify routing option for amplifier power connections, helping create a clean, organized appearance in your vehicle audio installation.

HIGH-OUTPUT - Sized for systems identified in the 3000W to 6500W range, this Gravity wiring kit is suited to demanding amplifier projects where appropriately sized power wiring is an essential part of the build.

COMPLETE - This Gravity PK8 amplifier installation wiring kit provides a coordinated solution for planning car audio power runs; verify your amplifier terminals, vehicle layout, and installation requirements before fitting.

Specifications

Brand
Gravity
Model
BGR-KIT4-R-PK2-3000W
Power Cable
17 ft, 4 Gauge
Ground Cable
3 ft, 4 Gauge
RCA Cable
17 ft, Double Shielded
Turn-On Wire
17 ft, 18 Gauge
Speaker Wire
20 ft, 16 Gauge
Fuse Holder
Inline ANL
Fuse Rating
200A
Terminals & Accessories
Included
Vehicle Compatibility
Car, Truck, Motorcycle, RV, ATV

Frequently Asked Questions

The kit is designed for use in cars, trucks, motorcycles, RVs, and ATVs — essentially any vehicle with a 12V electrical system that needs an amplifier installation.
The kit includes an inline ANL fuse holder with a 200-amp fuse to protect your amplifier and wiring from overcurrent.
The 4 gauge power cable is 17 feet long, the double-shielded RCA cable is 17 feet long, and the ground cable is 3 feet of 4 gauge wire.
Yes, the included 17-foot RCA cable is double-shielded to minimize electromagnetic interference and maintain clean audio signal transfer.
Yes, 20 feet of 16 gauge speaker wire is included along with all necessary terminals and accessories for a complete installation.