The 12 Best 4 Gauge Sub Wiring Kits (2023 reviews)

We know from years of feedback from readers, customers and amazon sellers, what most people want in a kit. The kicker 4 gauge sub wiring kit is exactly that - it's a simple kit that hits all the right notes. If you are putting a full system in your car this Kicker 4 gauge wire kit is the way to go. This complete four gauge amp kit comes complete with full spec wire, hardware, fusing and signal cable. The 12 AWG speaker wire is long enough to connect the Kicker LT7 8" loaded subwoofer behind the rear passenger seat. It comes with a self-taping screw for ground.

The 4 AWG ground wire is perfect length, no excess removed. It comes with braided nylon sleeve cover the wire that would be in the engine bay. The overall length is plenty long for reaching the back seat area of your vehicle. If you are planning on installing for long term then this is definitely a must.

Why We Like This:

Delivers enough current from battery to ensure amp bangs
Best wiring kit to have for your car system
Feels and looks nice, true guage wires, easy install with all accessories included
Comes with 100 amp fuse which is displayed on packaging and in description

Best For First timer: knukonceptz 4 Gauge Sub Wiring Kit

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The knukonceptz 4 gauge sub wiring kit should be able to handle its purpose and duties with ease. Power and RCA cables are long enough to go from front of car to back with plenty of extra cable length. The new Kca 4 gauge uses 29.44mm2 of copper clad aluminum (cca) to transfer current from your battery to amplifier. They also supply zip ties to aid in hiding and protecting the wires that are being route. The insulation is very soft so it's prone to cuts. The fuse holder is a piece of cake to connect.

The flexibility and durability of their wires is unmatched even in the lower cost lines of their products. This is great for being a kit. This is perfect kit for any install of an amp.

Why We Like This:

Good thick wire for power and ground
Nice gold plated crimp terminals, real nice rca wires, and thick speaker wire
Power cable is very well made

Best For money: Installgear 4 Gauge Sub Wiring Kit

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The installgear 4 gauge sub wiring kit should be able to handle its purpose and duties with ease. This wire is copper clad aluminum. The soft coating allows for wire to lay flat, and to be curved around. The wire ends to make any job look professional and clean. It is easy to work with overall. The wires are thick and strong, the insulation is thick but flexible and soft and easy to cut if needed. It is a bit fragile and easily broken strands. The kit includes several additional connectors for terminations. It will work with any watt output is perfect.

Why We Like This:

Good quality flexible cables and easy to work with overall
Definitely enough to get most systems up and running
Good fuse box inside, all wires very flexible
Flexible wires make all the difference

Best For heavy duty Power: Topstronggear 4 Gauge Sub Wiring Kit

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate kit. The topstronggear 4 gauge sub wiring kit is exactly that - it's a simple kit that hits all the right notes. It comes with everything you need to set up a budget build car stereo. The braided RCAs are awesome, no hiss, crackle, or signal noise to be heard. It is used for connecting the 12 inch subwoofer. It is easy to loose screws and the ground is good quality.

It comes with instructions on how to install or guides as to where to find the way to install them. The power wire and ground are good quality. It is easy to use pliers to force the clips open much farther while cutting some of the cable down (especially for the fuse connection) to get them to fit.

Why We Like This:

Has all you need to install most car audio components
Good quality materials and true to size
Good for a quick set up very well packaged

Best For any Installer shop: Gravity 4 Gauge Sub Wiring Kit

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The gravity 4 gauge sub wiring kit is satisfactory and appropriate and fits well with your regular usage. This kit includes lots of wire and accessories. It works well for dual amplifier setup with eq and capacitor. It is made of high quality thick 17 feet ft 4 gauge ga power cable. It is made of copper coated aluminum, which looks like pure copper. It includes no speaker wire, strictly for power amp. It works well overall and the wire itself is well made and works nicely for the install.

The Great amp kit comes with everything you need to do a proper subwoofer installation.

Why We Like This:

Powered everything without any over heating or shorting out
Good investment for long term

Best For Car Amp: Skar Audio 4 Gauge Sub Wiring Kit

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate kit. The skar audio 4 gauge sub wiring kit is exactly that - it's a simple kit that hits all the right notes. This 4 gauge wiring kit is great for powering systems up to 1,200 watts and includes an anl style fuse holder and 100 amp anl fuse. It includes a 2-channel rca interconnect cable. The terminals are made for 0-2 gauge, so they don't really crimp well on the supplied 4 guage. It is fine for most people in most situations.

The kit comes without any sort of crimping device to install the connectors. It is a relatively easy installation if you have some experience in subwoofer installations. They are nice cables and work well.

Why We Like This:

Power and ground have ring terminals on one side only
Power and ground wire are of pretty nice quality
Good investment for long term

Best For Car Audio: soundbox 4 Gauge Sub Wiring Kit

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Best part: soundbox 4 gauge sub wiring kit costs comparatively low and it is available to ship in 24 hours. If you're just looking to wire up a subwoofer amp, this is a good bang for your buck. It includes speaker wire and twisted pair rca cables. It has a sealed fuse link so that's nice. It’s nice heavy wire. The wire connections are very flimsy and low quality metal but will work just make sure you don’t have a amp that’s no secured as the moving will break connections over time.

It comes with speaker wire like most wiring kits would. The quality of the wiring is decent.

Why We Like This:

Works great and came with everything needed for a new amp/sub install
Really good kit, comes with everything necessary to hook up your single amp
Clean sound & no more awkward thumps

Best For Price: Boss Audio systems 4 Gauge Sub Wiring Kit

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Not everyone likes to purchase kit for their daily purpose, but the boss audio systems 4 gauge sub wiring kit would be an anomoly. A car amplifier wiring kit helps you make connections and brings power to your radio, subwoofers and speakers. It is great for 400w, 500w, and 600w amps. It comes with the speaker wires to connect the amp to the sub. The wire inside the insulation is closer to 12 gauge than 8 gauge. If you're trying to power a budget sound system, and you just want a little extra bass, this kit is PERFECT. It contains the additional accessories you will need to properly install your amplifier. It is a good wiring kit.

Why We Like This:

Nice wiring kit for a wide range of subs
You can power both your amplifiers on one fuse
Good value on getting ties and plastic sheathing
A basic setup to install a fairly low-power amp

Best With Remote Wire: IMC Audio 4 Gauge Sub Wiring Kit

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This amp kit 4 gauge includes a high quality, high performance 17 rca interconnect cable. It fits properly into the fuse holder, and good quality connectors that fit. It is beautiful, and it should work depending on what your speakers are pushing. Unlike most car amplifier wiring kits, this one also includes black split loom to hide your wires and make a clean install. This amp install kit provides everything needed for an amp wiring kit.

This 4 gauge wire is constructed using copper clad aluminum to make it an affordable and practical amp kit for most 4 gauge amplifiers. It is easy to use and great size for a big amp. It fits properly into the fuse holder, with good quality connectors that fit.

Why We Like This:

4 gauge amp kit general features
Great kit and definitely a go to for any future setups
Good wiring thickness with good quality wires and great value for money
Definitely 4 gauge wire .very nice

Best For Not A lot of money: Pyle 4 Gauge Sub Wiring Kit

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Not everyone likes to purchase kit for their regular usage, but the pyle 4 gauge sub wiring kit would be an anomoly. The speaker wire is sufficient for running components or coaxial speakers or even a low power sub. It's more like an oversized 8 gauge. It includes all necessary pieces to set up your amplifier and subwoofer speakers. It's CCA (copper clad aluminum) wire. The remote turn on wire is perfect size, small and easy to conceal.

The wire ties are very brittle, but they give plenty to do the job even with breaking a few so be gentle on the wire ties. It is great for a small system of 1600 watts and is nice and thick. It is not as thick as other 4 gauges as others have said, but the speaker wire is nice and thick.

Why We Like This:

Thick coating on the wires, rca's have the remote wire built in
A great kit for amp installs
Quality is good, cables are soft and nice
Plenty of wire for the average car small truck

Best With capacitor: Atrend 4 Gauge Sub Wiring Kit

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate kit. The atrend 4 gauge sub wiring kit is exactly that - it's a simple kit that hits all the right notes. This kit's primary 4/0 cable is much better quality. It is legit 4 gauge and it is great with audiopipe amps. The power wire is awesome quality. The third hole is directly under the fuse, in the center of the base. It is flexible for how thick it is, and that makes installation easier.

The wiring is plenty long enough and well made. It's meant to be enclosed in a car away from weather. This will deliver the best quality music your electronics can deliver.

Why We Like This:

Wire and insulation is of good quality
High strand counts and very flexible
Nice thick flexible insulation on wires
Very good fuse holder and power cables already crimped for installation

Best For vintage Wiring setup: LEIGESAUDIO 4 Gauge Sub Wiring Kit

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Leigesaudio is known for creating pragmatic and minimalist kit for people on the go, and its line of leigesaudio 4 gauge sub wiring kit definitely falls in line with that reputation. The RCA cables are super long, 17 feet. The remote turn on cable is small but it has a very low current wire and works fine. The kit should bring three red connector covers since you have to connect two to the breaker circuit and then one to the battery. These cables are nice and there is a connector already attached to one end which can of course be cut off if the connector is not the right diameter for your application. A large 100 amp inline fuse is included and it has a cover over it to prevent accidental shorting to ground.

Why We Like This: