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Rockford Fosgate RFK4I

4 Gauge Power and Signal Installation Kit

In Stock
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List price $119.99

$69.99

with warranty

You Save: $50.00 (41.67%)

Arrives by Wednesday, Aug. 27 to zip 20147

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Product Features:
  • 4 Gauge Power and Signal Installation Kit
  • Designed specifically for car audio systems up to 1000 watts
  • Premium power and ground wire provides optimal power transfer
  • Made from 100% oxygen-free copper for a pure uninterrupted transfer of power
  • Includes 2-channel RCA interconnect cables for the audio signal connection from the receiver to the amplifier
  • RCA Interconnects are made with twisted-pair technology for noise reduction
  • Terminals are nickel-plated for excellent signal transfer
  • Maxi Fuse holder offers ideal protection for high powered systems
  • True-to-Gauge cables/wires meet or exceed the industry standard of copper required for the gauge size
Package Includes:
  1. 17ft. 4-Gauge power cable
  2. 3ft. 4-Gauge ground wire
  3. 20ft. Twisted pair of RCA
  4. Maxi fuse holder and fuse
  5. 20ft. Remote wire
  6. 100 Amp fuse

Amplifier Kit Specifications

Amp Kit Type
Amplifier installation kit come in two different types: Power or Complete. Power Amp kits are designed to only provide power to the amplifier. Complete kits will provide power and signal to the amplifier. Many of the complete kits will also include speaker wire to connect the amplifier to the subwoofer.
Complete
Number of Amplifiers Supported
This is the number of amplifiers that the amplifier kit can support. If you are are going to be powering more than one amplifier, make sure that the installation kit will support them.
1
Power/Ground Wire Size
The power/ground gauge numbers represents the main wire size of the amplifier kit.

Definitions are as follows:

Gauge (wire) - The diameter of a wire. The higher the number, the thinner the wire. Example: 4 gauge wire has more strands than 10 gauge wire.

AWG (American Wire Gauge) - A standard of the dimensional characteristics of wire used to conduct electrical current or signals. AWG is identical to the Brown and Sharpe (B & S) wire gauge.
4 gauge
Power Wire Length
This is the length of the power wire in feet.
17 feet
Power Wire Color
Red
Ground Wire Length
The length of the ground wire in feet.
3 feet
Ground Wire Color
Black
Speaker Wire Included
If speaker wire is included, the value will be "Yes" and if no wire is included, it will read "No".
No
Remote Wire Length
This is the length of the remote wire that is included with the item.
20 feet
Interconnect (RCA) Signal Cables Included
Interconnect cables are required for amplifiers which are installed to the "RCA preamp low-level outputs" of a car stereo receiver. If your amplifier has high-level / speaker level inputs, then you do not need to purchase interconnects; however, interconnects offer a much higher quality sound when compared to speaker level inputs.
2 Channel
Fuse Holder
This is the type of fuse holder that is included in the item.
MAXI
Fuse Size
This is the size of the fuse that is compatible with the fuse holder. If the fuse needs to be replaced, be sure to replace it with the same size.
100A
Distribution Block Included
This means that the kit includes a distribution block in the package. This will assist in the installation of the amplifier kit or any situation where a distribution block is required.
No
Complies to AWG Standards
Since 1857, The AWG (American Wire Gauge) system has been the standard for measuring the diameter of wire. AWG standard is the measure of bare wire to find true gauge. Companies that do not follow AWG Standards include the thickness of the wire jacket which means the actual wire is not "True to Gauge". For the best performance from your amplifier wiring kit, make sure that the cable complies to the AWG standard.
Yes
Wire Material
The material that the wire is made of. Copper & aluminum are the most commonly used materials. OFC - Oxygen Free Copper is the ideal choice for wire material. Copper is a superior electrical conductor, & does not expand or contract with heat. CCA - Copper-Clad Aluminum is a suitable choice for lower powered or budget applications. The power transfer is not on par with OFC, but this material offers significant savings.
OFC (Oxygen-Free Copper)

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
77%
4 Star
23%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
4.7
Features
4.4
Design
4.8
Usability
4.8

turkey

pt, mo

Overall
Durability
Value
Features
Design
Usability

true

October 2, 2011

I love this wire it's so much better than my old 4 gauge wire. I put it next to the 4 gauge i bought from a local audio store and the rockford wire was twice as big and way more flexible. Everything in this kit is amazing and it is def worth the price.

2 of 2 found this helpful

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Ryan

Eugene, OR

Overall
Durability
Value
Features
Design
Usability

HIGH QUALITY! GREAT BUY!

May 24, 2011

Great Great Deal! RF's Cables are nice! Pro: Really Flexible Price HIGH HIGH QUALITY CABLES (i was surprised.) It looks like licorice. (seriously!) :) Pre-Attached Fuse Holder and Terminals Cons: A different fuseholder would be nice because it just sticks out and was more of a hassle to try and get it in.

2 of 2 found this helpful

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piyush

Canada

Overall
Durability
Value
Features
Design
Usability

amazing amp kit

April 30, 2014

really flexible and bendy and performs much better than anything else

0 of 0 found this helpful

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sharma

Canada

Overall
Durability
Value
Features
Design
Usability

top quality

April 13, 2014

just recieved these a couple days ago and compared it to my other 4 gauge kit from stinger, the difference is insane. this stuff is amazing soooo soft and bendy even better than licorice. none of these other brands that make amp kits come even close to the quality and performance of rockford.

0 of 0 found this helpful

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Leotorres

Mentor

Overall
Durability
Value
Features
Design
Usability

Excellent

September 19, 2013

It is working pretty well. This brand is the best on wires, so No complains

0 of 0 found this helpful

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Kile

Burlington, CO

Overall
Durability
Value
Features
Design
Usability

I liked it

August 20, 2013

I would recommend this product to anyone installing an amp. The power and ground wires are really nice quality wires. The whole kit is just a nice put together kit. Love it

0 of 0 found this helpful

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Chris

Ogden Utah

Overall
Durability
Value
Features
Design
Usability

awesome

June 26, 2013

This amp kit is awesome! very thick pure copper wire. runs very clean, power keeps my system knockin. the fuse holders a lil tricky.. overall would recommend 10 times to anyone. Great price as well

0 of 0 found this helpful

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Dustin

Green Bay, WI

Overall
Durability
Value
Features
Design
Usability

High quality cable!

April 1, 2013

Excellent product! The positive wire was ready to install right away with no crimping involved. Just had to drill the hole a little larger. The cable is very flexible, durable and is true to it's size rating! Rockford Fosgate did a great job in producing a quality product.

0 of 0 found this helpful

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ANT

Bay Area

Overall
Durability
Value
Features
Design
Usability

NICE

February 28, 2013

Good amp kit. Includes everything thing you need. Real 4 Guage wire!

0 of 0 found this helpful

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Motorhomeguy

Rochester, MI

Overall
Durability
Value
Features
Design
Usability

Great little unit

February 9, 2013

The unit is exactly as advertised and makes a great small package sub for any car where space is an issue. It was easy to install and works great - I installed it in a 34 foot motorhome and I could have used a little more power, but it does the trick and I am satisfied. Pros: ease of installation, size and appearance Cons: could use a little more power

0 of 0 found this helpful

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Greg

Farmington, MO

Overall
Durability
Value
Features
Design
Usability

Excellent car audio power cable

December 29, 2012

Excellent product. Easy to work with. I bought two sets so I could wire a four channel amp and have extra power wire to do a "big three" wire project under the hood. Highly recommended.

0 of 0 found this helpful

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Nuremberg

New York

Overall
Durability
Value
Features
Design
Usability

Rockford Fosgate RFK4I Review

September 20, 2012

All i can say is wow. Unbelievable power delivery and a crisp clean signal with no distortion or signal loss issues. RF has always been amazing with their products and this kit just adds to that reputation.

0 of 0 found this helpful

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dferg1

Rock Hill, SC

Overall
Durability
Value
Features
Design
Usability

Speedy Shipping!

June 27, 2012

Sonic always ships there products out very quickly. They are my favorite so far, and I have delt with other e-bay stores. This product does exactly what is listed. You won't be disappointed. I know I was'nt.

0 of 0 found this helpful

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Exavier

Deltona, FL

Overall
Durability
Value
Features
Design
Usability

Excellent qaulity.

June 12, 2012

Excellent product. Great build quality. True to Gauge. NO B.S. specs. The fuse holder is a little tricky.

0 of 0 found this helpful

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Blue silk

Corona, ca

Overall
Durability
Value
Features
Design
Usability

Great product

April 9, 2012

Never had any problems with this product and if I get a new car I would not settle for less.

0 of 0 found this helpful

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Jim

Salt Lake City, Utah

Overall
Durability
Value
Features
Design
Usability

Good Wires

April 2, 2012

Good wires, i like them. They do a good job. They are a lot of money but you get what you paid for, cant go wrong with Rockford products.

0 of 0 found this helpful

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Jace

Sacramento, CA

Overall
Durability
Value
Features
Design
Usability

Awesome!

March 27, 2012

like most said the fuse holder was awkward and a little tricky.. but besides that everything is great!

0 of 0 found this helpful

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Rob

Canada

Overall
Durability
Value
Features
Design
Usability

Good Deal!

February 9, 2012

Good quality at a good price, shipping was good and quick as well.

0 of 0 found this helpful

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Nick C

Arkansas

Overall
Durability
Value
Features
Design
Usability

Rockford Wire

December 29, 2011

I highly recommend this wire kit! I have it hooked up in my 99 chevy silverado with a kenwood 9105d and JBL GT5s in a sealed box and it's amazing. The wire is defintly full 4 guage. Not copper over aluminum like most cheap brands are. A 4 guage copper over aluminum is like 8 guage true copper. Having proper wire is essential to reaching maximum ability of your amp. If your amp cannot receive the full amount of power then it will overheat and stop working. A good wire kit is a safety investment in your car audio. This is a great kit for the price. Everything you need to hook your amp up. You get what you pay for. Don't get cheap wire and risk your amp, subs, and car battery. Overall great kit and would recommend friends buying!

0 of 0 found this helpful

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clean car & a subwoofer

GIG HARBOR, WA

Overall
Durability
Value
Features
Design
Usability

great value

December 22, 2011

I already have 3 of these, they are the best product for the money! Take it from sonic, fast shipping too! I like the maxi fuse holder and all the terminal rings included.

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Accessory Tools and Products

Accessories added

NVX V Series RCA Audio Interconnect Cable

V-Series: 5m (16.40 ft) 2-Channel RCA Audio Interconnect Cable

Your Price $11.99

NVX X-Series RCA Interconnect Cables

16.4 ft of X-Series 2-Channel RCA Audio Premium Interconnect Cable with Dual Twisted Pair Hyper-Flex Technology

Your Price $26.99

Scosche Distribution Block

Single 4 AWG input to four 8 AWG output distribution block plated in chrome

Your Price $4.99

Heavy-Duty Grommet

This Stinger heavy duty grommet is the perfect and safe solution to running wires through the firewall.

Your Price $5.99

Black Cable/Zip Ties

100 pack of 12" zip ties - These cable ties provide a secure installation of your cables and wires, as well as making installation simple and fast.

Your Price $5.99

Door Panel & Upholstery Remover Tool

Easily remove your door panels and other panels to make the installation of your new tweeters easy.

Your Price $5.99

Universal Window Handle Remover Tool

Remove your manual windows and door panels with this simple and convenient tool.

Your Price $9.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Car Audio Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Browse 1 question and 1 answer
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Why did you choose this?
Sonic Electronix Store
heard it was good and it was would buy again
joshua g on Aug 21, 2014

Product Summary

Manufacturer

Model Number

RFK4I

UPC

780687325527

Weight

5.00lbs

Internal SKU

rfk4i

Internal Product ID

9894

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Rockford Fosgate RFK4I