Complete 3000W Gravity 4 Gauge Amplifier Wiring Kit - Installer Ready

In this review of the Complete 3000W Gravity 4 Gauge Amplifier Wiring Kit, the bottom line is straightforward: this kit is built for installers and DIY hobbyists who need a robust, all-in-one wiring solution for car, truck, motorcycle, RV or ATV installs. The single biggest reason to buy is the heavy 17 ft 4 gauge power cable paired with a 3 ft 4 gauge ground and inline ANL fuse, which together provide the capacity and protection required for high-power amplifier systems without hunting for extra parts.

Key Features

• 17 ft 4 gauge power cable: thick, long power lead gives reliable current delivery for high-power amplifier setups and flexible routing in most vehicles.
• 3 ft 4 gauge ground cable and 200A fuse: the included ground wire and inline ANL fuse holder with a 200 amp fuse provide essential safety and a complete protection chain out of the box.
• Double shielded RCA cable (17 ft): reduces interference and preserves signal integrity for cleaner audio when mounting the amp away from the head unit.
• Turn-on and speaker wire included: 17 ft/18 ga turn-on lead and 20 ft/16 ga speaker wire simplify installation without sourcing additional connectors.
• Full accessory set: terminals and installation hardware are included so installers can finish an amp install without extra trips to the parts counter.

Who It's For

This kit targets professional installers and experienced DIYers who install high-power amplifiers and need a complete, durable wiring solution. It suits anyone wiring systems up to the kit's protection level in cars, trucks, motorcycles, RVs and ATVs where space and routing length are considerations.

Less experienced buyers who prefer plug-and-play vehicle-specific harnesses or need longer speaker or ground runs should check fit and lengths before purchasing; the kit is generic and built for flexibility rather than vehicle-specific convenience.

Pros & Cons

Pros

• Heavy 17 ft 4 gauge power cable gives confidence for demanding amplifier loads.
• Complete protection with inline ANL fuse and 200A fuse included for safety.
• Double shielded 17 ft RCA cable helps minimize hiss and noise in installs.
• All necessary terminals and wiring lengths included to finish most installs without extra parts.

Cons

• Speaker wire is 16 ga, which is adequate for many installs but may be light for very long runs or extreme high-power speaker setups.

Specifications

Brand	Gravity
Power cable	17 ft, 4 gauge
Ground cable	3 ft, 4 gauge
Fuse	Inline ANL holder with 200A fuse
RCA cable	17 ft, double shielded
Turn-on wire	17 ft, 18 ga
Speaker wire	20 ft, 16 ga

Our Verdict

The Gravity Complete 3000W 4 gauge wiring kit is a practical, cost-effective choice for installers and experienced DIYers who need a comprehensive set of heavy power, ground and signal cables with protection included. It saves time by bundling the common lengths and all terminals, and delivers the core components needed for a reliable high-power amp install.

Frequently Asked Questions

Does this kit include a fuse?
Yes. It includes an inline ANL fuse holder and a 200A fuse for main power protection.

Are the RCA cables shielded?
Yes. The kit contains a 17 ft double shielded RCA cable to reduce interference and preserve audio signal quality.

Will the speaker wire handle high-power speakers?
The kit uses 16 ga speaker wire which is fine for many installs, but extreme high-power or very long runs may benefit from heavier gauge speaker cable.