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Rockford Fosgate

Rockford RFK4X 4 AWG Complete Amplifier Install Kit

    • Based on 576 reviews
Condition: New
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Availability: 19 left in stock
Fulfilled by Creative Audio
Arrives Tuesday, Feb 11
Order within 12 hours and 30 minutes
Available payment plans shown during checkout

Style: RFK4X


Product Packaging: Standard Packaging


Features

  • Rockford Fosgate Power Kits feature full AWG (American Wire Gauge)
  • Battery PWR/GND Gauge - 4 AWG. Amplifier PWR/GND Gauge - 4 AWG. Fuse Type - MAXI. Speaker Wire Gauge - 16 AWG. Fuse Size - 100 Amp
  • All brass parts are manufactured using the highest quality of standards
  • All kits include the appropriate wire termination hardware
  • 100% oxygen free copper

Description

Since day one, we have spearheaded the car audio revolution. Nothing has changed. Rockford Fosgate is still the global leader in audio innovation and your passion is our purpose. We engineer the best audio systems for your lifestyle!

Number of Batteries: A batteries required.


Brand: Rockford Fosgate


Recommended Uses For Product: Power


Unit Count: 1.0 Count


Voltage: 12 Volts


Product Dimensions: 11.5 x 2.2 x 13.5 inches


Item Weight: 4.95 pounds


Item model number: RFK4X


Batteries: A batteries required.


Is Discontinued By Manufacturer: No


Other display features: CE


Manufacturer: Rockford Fosgate


Date First Available: November 1, 2008


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Feb 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Grate amp kit
Style: RFK4X Product Packaging: Standard Packaging
Awesome amp kit grate value for the money, easy to install. Really thick wire and delivers lots of power to the subs, grate fit.
Reviewed in the United States on December 9, 2024 by james green
    • This is a COMPLETE wiring kit!
Style: RFK4X Product Packaging: Standard Packaging
There are many other detailed reviews on here, but let me just say that this kit rocks! I am not super techy or nerdy, but as a car buff, I recognize quality when I see it. And, this kit has it, plenty actually. Quick cliff notes for the ADD types: You get your moneys worth, and if you have a nice amp and sub, don't cheap out on the wiring. Let's first address the cost. You will find other 4AWG kits that are half price. Are you paying for the name, or something more? You ARE getting your moneys worth with this kit. The power and ground cables are pure copper. Cheaper kits are mixed with aluminum, which has more resistance than copper. So your "4awg" cable really isn't a TRUE 4 AWG cable. This kit, however, is. And, it's got a TON of copper strands, like 1,800 I think? Something rediculous, which leads into the next paragraph on why it's so flexible. People aren't joking when they say this stuff is flexible. Imagine the 4AWG power and ground cables are just super big Twizzlers, because that's how flexible the cables are! The power cable is plenty long enough. My amp is installed under the drivers seat (4 door sedan, battery on drivers side), and I had to cut about 4-5' off the power cable as it was just too long. Wow, I thought - I actually had cable left over? Murphy's luck usually leaves the cables 6" too short, but not this time. If you are wondering why the ground cable is only 3' long, it's because that's the recommend max length for a ground cable (Google it if you don't believe it). It was plenty long to find a seat bolt to ground to. The ends on the cable are very nicely, solidly crimped and heat shrunk on the ends. My car was lucky, and the bolt holes were a perfect fit! It was nice to see the holes a tad on the smaller side, as it's much easier to slightly enlarge the holes rather than have the ends too large for the bolt you're fitting it to, and it has that "slop" to it (very tacky and unprofessional to me) The RCA cables seemed too long at the time, but after running them on the OPPOSITE side of the power wire (To help avoid static noise), it turned out they were just perfect. The remote turn on wire was more than long enough. Again, I had to trim some off. I can't describe how awesome it is to have wire LEFT OVER, and not have to splice! My box/subwoofer has RCA plugs, so that was the ONLY additional wiring I had to purchase to fully install and wire my amp/sub kit. I had to order 2 additonal RCA patch cords (To run from the amp to the sub, the RCA cables that came with the kit go from the output of the headunit to the input of the sub). However, if your sub just has regular speaker wire hookups, have no fear - this kit includes quality speaker wire to run from the output of the amp to the sub, along with all the little ends and connectors. Yes, this kit comes with the mega huge 100amp fuse, but it's NOT pre-installed on the power cable. It's in the little baggie of odds and ends, so don't be a moron and give this kit 1 star because you thought they didn't give you a fuse (I'm not sure how you could miss that huge fuse in the bag, but whatever). The only thing I would change is that this kit does come with all crimp stuff, but I decided to go ahead and solder/heat shrink all my connections. The only thing I did not solder was the actual ends of the 4AWG cables, as it was crimped pretty dang solid and looked beautiful with the heat shrink wrapping already on it. My setup is a Pioneer AVH-P4300DVD with a JL 500/1 and a JL 10W6v2. I'm far from a millionaire, but I wasn't about to skimp on wiring with a quality amp/sub setup. This wiring kit is on par with the quality that comes from the JL amp and sub lineup. ... show more
Reviewed in the United States on October 19, 2011 by Rambling Man
    • True 4AWG Copper Wiring Kit
This kit is exactly what I was hoping it would be. I was very hesitant searching for the right set, because the main problems with wiring kits are: 1. Not true to the specified gauge 2. Made with aluminum, not 100% oxygen Free Copper (better conductor) This kit is both true 4AWG wire AND 100% OFC. It comes with a very nice red power cable and black ground cable, twisted RCA cables that reduce noise and distortion, very sturdy speaker wire and remote wire, an awesome 100A fuse in a sturdy fuse holder*, and every terminal piece you'll need to cleanly end your wires. On top of that, it is very affordable. I've looked at every wiring kit on Amazon, and I will say that this was the right choice. If you want your system running at its full potential, do NOT skimp on the wiring. Go big or go home. This kit will definitely help you go big. *NOTE: To tighten the fuse connections down, the silver piece on the plastic fuse holder pops out so you can tighten the screws! Took me a minute to figure out. ... show more
Reviewed in the United States on August 27, 2011 by G-Unit
    • Love it!
Style: RFK4X Product Packaging: Standard Packaging
This is the wiring kit that was used in my car for my Sub woofer installation. The installation consisted of a Kenwood receiver-wired to an Kenwood 1000w Amp-then connected to a Kenwood 1200w sub. This cable was plenty long enough to reach from the front to back of the vehicle (Chevy Malibu), and with a bit of wire to spare (even running the power and RC cables on different sides to avoid them from creating distortions). The wire is very thick, and after cutting off about an inch of it for a clean workable cable, it is clear that it is very dense and pure copper. The cable is also surprisingly flexible for how thick it is, and is easy to work with. I would definitely recommend this kit. It even comes with extra wire adapters I used to hook up some LEDS in the car. Thanks Rockford for being great per usual.! ... show more
Reviewed in the United States on June 20, 2014 by Matthew B
    • Rockford fosgate install wiring kit
Style: RFK4X Product Packaging: Standard Packaging
Good quality but side was open a bit and the speaker wire was missing .My Installer only needed about 3 feet worth for my application. So it didn't cost me anything extra .
Reviewed in the United States on December 9, 2024 by ronniej
    • Excellent Product
Style: RFK4X Product Packaging: Standard Packaging
I bought this setup from best buy when I did my first car for a hundred bucks, but that was three years ago. I totaled that car since (R.I.P Ruby) and moved on to a civic SI. One of the first things I did was replace the radio and went for the same super quality parts I had before except it cost 120 at best buy this time so I looked for alternatives and here it was. Much cheaper. I don't think I need to speak on the quality as if you know Rockford Fosgate you know their quality is superb and you get every single penny that you paid for. The wires are long enough for everything.I had more than enough power, rca, and remote wire. My only problem was with the ground wire really which is about 14 in long. Though doing some reading I learned its best to have a shorter ground cable. This kit comes with everything you need. Apply that with a little know-how and you should be bumping along down the road. ... show more
Reviewed in the United States on March 1, 2012 by Mike T.
    • Best Wiring Kit for the Best Price!!!
When it comes to ordering electronics, these guys really makes it easy. They responded to my email right away clarifying my question regarding the used wiring instal kit for my system. I got a great deal on the Rockford Fosgate kit at a used price. Even though it was marked used, it only had opened packaging but was still unused as far as the wires are concerned. And those wires are outstanding quality so if you're considering it, then look no further, I did the research and this is the kit you want. I took everything to my install guy at Best Buy and he complimented the wire kit being a great quality brand and after he was done installing my twin JL Audios with the other parts from Ocean Reef Electronics (Line Converter and 2 panasonic 240watt Side panel speakers), everything sounds great. Thanks again for the quality service. ... show more
Reviewed in the United States on January 9, 2012 by Jason
    • So far so good.
Style: RFK4X Product Packaging: Standard Packaging
Great kit for the money, working as expected and no issues .
Reviewed in the United States on February 21, 2024 by Kevin Walker

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