Why Shop Sonic Free Shipping Free Tech Support Easy Returns Low Price Guarantee Details
Print

Rockford Fosgate RFK4I

4 Gauge Power and Signal Installation Kit

4.8

(32 reviews)

Read 32 reviews

Write a review

Specials with this product

  • Free Ground Shipping to the 48 statesdetails
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
Amplifier KitComplete
Number of Amplifiers Supported1
Power/Ground Wire Size4 gauge
Power Wire Length17 feet
Ground Wire Length3 feet
Speaker Wire IncludedNo
Speaker Wire LengthN/A
Remote Wire Length20 feet
Interconnect (RCA) Signal Cables Included2 Channel
Fuse HolderMAXI
Fuse Size100A
Distribution Block IncludedNo
Complies to AWG StandardsYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Rockford Fosgate RFK4I
Average Customer Rating is 4.8 out of 5 stars:
4.8
based on 32 Reviews
Share your thoughts with others:
Write a Review
Rating Distribution:
5 star:
.
.
78%
4 star:
.
.
22%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.8
Value
4.7
Features
4.3
Design
4.8
Usability
4.8
what's this?
Most Helpful Customer Reviews:
October 2, 2011 true
1 of 1 people found the following review helpful:
Review by
turkey from pt, mo
Overall
Durability
Value
Features
Design
Usability
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.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
May 24, 2011 HIGH QUALITY! GREAT BUY!
1 of 1 people found the following review helpful:
Review by
Ryan from Eugene, OR
Overall
Durability
Value
Features
Design
Usability
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.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
December 29, 2011 Rockford Wire
Review by
Nick C from Arkansas
Overall
Durability
Value
Features
Design
Usability
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!
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
December 22, 2011 great value
Review by
clean car & a subwoofer from GIG HARBOR, WA
Overall
Durability
Value
Features
Design
Usability
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.
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
December 20, 2011 Great value & fast shipping!
Review by
Clean car & a subwoofer from GIG HARBOR, WA
Overall
Durability
Value
Features
Design
Usability
Very good 4 guage wire, pretty much everything what you need for a subwoofer amp wiring... very pliable wire, easy to hide under the carpet. I hook it up to a friend of mine, no sweat :) Sonic has a good deal compare to other retailers. I you've got extra cash, take kicker, the blue one. It is thicker and silver tinted... the one im using right now. :)
Help other customers find the most helpful reviews
Was this review helpful to you?
Yes No
 Report Abuse | Write a Review
Share on Facebook Share on Twitter Share on Delicious Share on Buzz
View All 32 Reviews for Rockford Fosgate RFK4I
RCA Interconnect Cables
If your new amplifier kit does not include any RCA Interconnect cables, you are most likely going to need some. The better the RCA cables, the better the sound will be.
 ProductPriceAdd?
Directed Silver Series Audio Interconnect Cable ** LOW PRICE **Directed Silver Series Audio Interconnect Cable ** LOW PRICE **
20 ft. of 2-Channel RCA Interconnect cable with twisted pair construction.		$3.99
Kicker K-Series RCA Interconnect CablesKicker K-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!		$14.99
Monster Cable 302 XLN+ Audio Interconnect CableMonster Cable 302 XLN+ Audio Interconnect Cable
13.12 ft. of 2-Channel Monster Interconnects with a split center pin, 2-way time correct winding, and 6-cut turbine mirrorchrome contacts.		$33.00
Speaker Wire
If your new amplifier installation kit doesn't come with any speaker wire, look at the following to see what we recommend. Use higher quality speaker cable to get the best sound in your car.
 ProductPriceAdd?
20 ft. of 12 Gauge Kicker Speaker Wire20 ft. of 12 Gauge Kicker Speaker Wire
Dual twisted pair speaker cable with hyper-flex technology and sleeves for a clean install		$24.99
50 ft. of 12 AWG Monster 302 XLN+ Speaker Cable50 ft. of 12 AWG Monster 302 XLN+ Speaker Cable
Monsters exclusive SingleHelix® and XLN® construction result in excellent sound reproduction.		$35.00
Circuit Breakers, Fuse Holders, and Extra Fuses
The power cable on your amp kit will need a circuit breaker or a fuse and fuse holder for a safe installation. By adding these accessories to your system you can prevent a power surge from causing damage to your system.
 ProductPriceAdd?
120 Amp In-line Circuit Breaker120 Amp In-line Circuit Breaker
Protect your system up to 120 amps with the in-line circuit breaker. Remember to match the circuit breaker with your amplifier's rating to prevent any unwanted damage.		$14.99
Distribution Blocks
These fused and solid distribution blocks are perfect for spreading your systems power throughout the entire vehicle.
 ProductPriceAdd?
Scosche Distribution BlockScosche Distribution Block
Single 4 AWG input to four 8 AWG output distribution block plated in chrome		$4.99
Kicker Distribution BlockKicker Distribution Block
Two 1/0 or 4 AWG inputs to four 4 or 8 AWG outputs		$18.99
Installation Accessories
These accessories will help you install your new amplifier kit. Some of these items are not necessarily required, but can be helpful and convenient for the installation.
 ProductPriceAdd?
Heavy-Duty GrommetHeavy-Duty Grommet
This Monster 400 Series heavy duty grommet is the perfect and safe solution to running wires through the firewall.		$5.00
Black Cable/Zip TiesBlack Cable/Zip Ties
100 pack of 15" zip ties - These cable ties provide a secure installation of your cables and wires, as well as making installation simple and fast.		$7.99
Installation Tools
Your are going to need some tools to install your new amplifier kit. However, if you don't want to install it yourself, you can purchase an Installcard and prepay to have a professional installer do all the hard work!
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
Easily remove your door panels and other panels to make the installation of your new tweeters easy.		$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Remove your manual windows and door panels with this simple and convenient tool.		$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!		$6.99
Main Product
 ProductPriceAdd?
Rockford Fosgate RFK4IRockford Fosgate RFK4I$72.99

Product Summary

Manufacturer: Rockford Fosgate
Model number: RFK4I
UPC: 780687325527
Weight: 5.00 lbs
Internal SKU: rfk4i
Internal product ID: 9894

Price Information

$119.99

–$47.00

$72.99

Add an Optional Extended Warranty

Add

$7.99

$

In Stock

save to wish list

Why Sonic Electronix?

February caption contest - win a Powerbag!

Customer Testimonial

I have been using this site to compare products. Only one exception they have carried everything needed! I have used John, he has been great! In every matter that I perceived as a problem, he has fixed with no issue! He is very very knowledgeable, friendly & his communication skills are first rate.

- Mr. Mike from Nashville, Tn.

See more…

Recently Viewed Items

rfk4i thumbnail

Bluetooth Car Kit with LCD Display (CK-3100)

rfk4i thumbnail

Universal, Bar Type Rear View Camera, Painted Black, Attaches to Top of License Plate (VTL420, VTL 420))

rfk4i thumbnail

6" S Series 2-way Car Speakers, Reduced Clearance (S-65RC)