Gravity GR-KIT4ANLB 4 Gauge ANL Amplifier Installation Kit - Complete

Our review of the Gravity GR-KIT4ANLB finds it is aimed squarely at DIY car audio installers and professional installers who need a complete, heavy-duty installation kit. The single biggest reason to buy is the inclusion of full 4 GA power and ground cables plus a double-shielded RCA, all long enough for typical sedan or truck installs, which removes the need to source separate high-current wiring. The kit balances convenience and quality with an ANL fuse holder, a 200A gold ANL fuse and an array of terminals and accessories that simplify a clean, safe amplifier installation.

Key Features

• 4 GA power cable: A 17 ft 4GA power cable provides the capacity and length to reach the battery from most amplifier mounting locations without splicing.
• 4 GA ground cable: The 3 ft 4GA ground cable offers a short, low-resistance path to chassis ground for stable amplifier performance.
• Double-shielded RCA: The 17 ft double-shielded RCA cable reduces noise pickup for cleaner signal transfer between head unit and amp.
• Speaker and turn-on wiring: Includes 20 ft of 16GA speaker wire and a 17 ft/18GA turn-on wire to complete signal and control circuits without extra purchases.
• ANL protection and terminals: Gold ANL fuse holder with a 200A fuse plus ring and spade terminals simplify secure connections and provide high-current protection.

Who It's For

The kit is best for car audio enthusiasts installing a medium to high power amplifier who want a single package that covers both power and signal wiring. It suits installers who prefer heavier 4 GA power wiring and a long, double-shielded RCA to avoid having to buy separate cables for every component.

Those who should look elsewhere include users with very compact builds needing shorter, custom-length cables or installers targeting extremely high-power systems that require larger than 4 GA wiring. Also consider specialized competition wiring if corrosion-resistant or welded lugs are required beyond the supplied gold terminals.

Pros & Cons

Pros

• Complete kit removes the need to source separate power, ground and RCA cables for a typical install.
• Double-shielded RCA helps minimize interference for clearer audio.
• Includes ANL fuse holder and a 200A fuse for proper high-current protection out of the box.
• Gold-plated terminals and accessories make secure, conductive connections easier during installation.

Cons

• Ground cable length at 3 ft may be short for some amplifier locations and could require repositioning the amp or extending the ground.
• The kit is built around 4 GA wiring, which may not suit extreme high-power systems that need thicker cable.

Specifications

Power cable length	17 ft 4GA
Ground cable length	3 ft 4GA
RCA cable	17 ft double-shielded
Turn-on cable	17 ft 18GA
Speaker wire	20 ft 16GA
Fuse and holder	Gold ANL fuse holder with 200A ANL fuse
Accessories	Gold ring and spade terminals, snap bushing, cable ties

Our Verdict

The Gravity GR-KIT4ANLB is a practical, good-value wiring kit for most amplifier installations, combining heavy 4 GA power wiring, a long double-shielded RCA and necessary ANL protection. It is especially useful for DIY installers and shops that want a single kit to cover power, signal and speaker wiring quickly. Choose this kit if you need reliability and convenience; look for heavier cable if you plan a very high-power build.

Frequently Asked Questions

Does the kit include a fuse?
Yes, it includes a gold ANL fuse holder and a 200A gold ANL fuse for main power protection.

Are the RCA cables shielded?
Yes, the kit provides a 17 ft double-shielded RCA cable to minimize noise and interference.

Is the ground cable long enough?
The kit includes a 3 ft 4GA ground cable; this is suitable for many installs but may be short for some amplifier locations, in which case repositioning or extending the ground is required.