Happy
Cameron from Indianapolis, IN on 3/1/2022
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Wired
Scott from ROY, UT on 8/6/2021
My primary reason for purchasing this instead of cheaper alternatives is the 1 year extended warranty on the amp from Rockford Fosgate when purchased together at the same time. I chose this model because I didn't want the RCA patch cable and I'm only hooking up one amp.- this kit doesn't come with RCA .if you need those then pick another model. First things I noticed out of the box was that the wire is very soft and flexible seems to be high quality (the wire actually comes with a serial number). I did purchase mine from the outlet store at a slight discount (open box), when purchased at the same time with the amp it qualified for another discount (bundle and save) AND I opted to forgo Crutchfield's FREE rush shipping -which I'd like to mention is ridiculously quick- (but I didn't 'need' rush for my order) another couple of discounts were credited, one discount/credit for non rush shipping and the other discount/credit by using my rewards points I earned from previous Crutchfield purchases to be clear. I received four stacked/combined discounts/credits. thank you Crutchfield! Certainly a great place to pick up the gear you need for the gear you want.
Pros: 1 year extended warranty on amp when purchased at the same time. Very soft and flexible High quality
Cons:
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Rockford Fosgate RFK4
Crutchfield customer from Riverside, RI on 6/3/2021
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This is it!
Crutchfield customer from Richmond, CA on 5/16/2021
It's the best available to have a mind blowing experience
Pros: This is complete there is no other amp kit like this everything you need is in this amp kit it will bring out the best from your amp and woofers
Cons: None whatsoever
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Rockford Fosgate RFK4
Crutchfield customer from Louisville, KY on 5/9/2021
Easy setup and awesome performance? I highly recommend!
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Rockford Fosgate RFK4
Crutchfield customer from Zion, IL on 5/6/2021
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High quality wire
Crutchfield customer from Columbia, MO on 5/2/2021
This is a very nice wiring kit. The wire is very soft and easy to get through the tight nooks and crannies of your install without kinking. For some reason mine didn't come with the blue remote turn on lead in the package but that's no big deal I just ordered some more from Crutchfield. One thing I would recommend is to check the tightness of the lugs that attach to the wire that go into the fuse holder. One of mine was loose and the wire slipped out. No big deal it tightened up just fine. I'm not a huge fan of the fact that the very large fuse protrudes from the side of the fuse holder. There are o-rings on the two end connections where the wire enters the fuse holder for waterproofing but nothing for the fuse so I recommend installing it with the fuse pointing downward so if water does get in it it can drain out. With some of the other fuse holders that Rockford fosgate offers it would be nice if they would ditch this one that comes with the kit and include one of their other more refined models. Plus there's that tiny little silver pop out plug that allows you to access the screws that set the fuse into place that will most likely get lost. Not really easy to change a fuse if you had to. I'm debating whether to change the fuse holder to a different one.
Pros: Very flexible wire, easy to route through twists and turns
Cons: Not a huge fan of the fuse holder. Double check tightness on factory connections.

0 of 0 found this helpful
you get what you pay for with RF
Crutchfield customer from Boulder, CO on 4/21/2021
Great power wire and fuse block. Cable seems to be very substantial, and the wires are pre-connected to the leads.
Pros: solid performing and reliable kit
Cons:
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Nice Quality
Crutchfield customer from Golden Valley, MN on 4/11/2021
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Rockford Fosgate RFK4
Michael from Enfield, NH on 3/25/2021
Just ordered this kit. Decided to try my luck with the " open box." Arrived in good condition, better than expected. Have always used crutchfield for any audio equipment, never let me down.
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Tundra
jeremy from CONNELLSVILLE, PA on 1/30/2021
Added this to my Rockford Fosgate amplifier, received extended warranty for the amplifier. The cable is a true 4 gauge both positive and negative. Great quality and everything you need for a solid install. And again Crutchfield people are top shelf. Thanks
Pros: Everything
Cons: None
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Rockford Fosgate RFK4
Crutchfield customer from Dublin, GA on 1/26/2021
Great wire. This wire is way different from the other. Usually I get a 4 gauge wire and it's more insulation than wire. This looks like a zero gauge. My advice is to save a few more bucks and get this rockford fosgate amp kit. The connectors and inline fuse is connected from the factory. Just run the wire and put the fuse in. Thanks again crutchfield
Pros: Plenty of wire inside insulation
Cons: None
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Matts 2003 Yukon
Crutchfield customer from Pearlington, MS on 1/17/2021
Stout and heavy wire just what you need for a large amp that draws a lot of current. Keep your receipt because if you buy this with the Rockford Fosgate amp you get a two year warranty on the amp that is just cheap insurance
Pros: Heavy wire and a extra year warranty on your Rockford Fosgate amp with this kit
Cons: None
0 of 0 found this helpful
Rockford Fosgate RFK4
Jorge from DSRT HOT SPGS, CA on 1/17/2021
Great product. Definitely worth the money, we really like the fact that they come with the terminal rings and heavy duty fuse.
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Noodle wire
Robert from PHILADELPHIA, PA on 12/28/2020
This amp kit is OK. The power wire seems to be good copper; it is flexible like a wet noodle. The insulation seems weak compared to welding cable I usually use. The only reason I got this was to extend the warranty on the RF amp. --The fuse holder is a little cheap, and why the large maxi fuse instead of a blade fuse? The grommets are worthless. --Basically you are buying a power wire and extended warranty. No reason for this kit to cost even $50, let along $80.
Pros: Power wire good quality copper --extends warranty on RF amp, if bought together and amp kit used for install
Cons: --Packaging sliced my right 4 digit and punctured my right thumb --Ground cable seems to be junk --all the accessories are worthless --The MAXI fuse goes into the side on the outside of the fuse holder, which makes no sense.








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Rockford Fosgate RFK4
Crutchfield customer from Concord, GA on 12/18/2020
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Rockford Fosgate RFK4
Crutchfield customer from Henryetta, OK on 10/26/2020
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Rockford Fosgate RFK4
Anthony from GRANBURY, TX on 10/19/2020
Definitely a must have for any amp requiring 4 AWG wire. Excellent quality and wire is very flexible making it a breeze to run from battery to back of vehicle.
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Rockford Fosgate RFK4
Crutchfield customer from Orlando, FL on 10/7/2020
Flexible and durable. Easy to install. Set up works great.
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Rockford Fosgate RFK4
Crutchfield customer from Carrollton, TX on 7/10/2020
I'd give it a 3 star for the fuse holder because, contrary to the product description, it does not take mini-anl/AFS fuses. The fuses can't go in the metal ends that go into the housing far enough for the Allen wrench screws to clamp down on the metal part of the fuse. It can only take MAXI fuses. But I give it 5 stars for how stout the cable is. Alot of copper. So that averages out to 4 stars in my view.
Pros: Thick copper cable. You can detach the metal ends that go into the fuse holder housing and use on a different fuse holder.
Cons: Quirky fuse holder. Contrary to claims, it does not take AFS fuses but only MAXI fuses.
0 of 0 found this helpful
Don't cheap out! Get this'
Crutchfield customer from Greenville, SC on 6/10/2020
Excellent! You won't be sorry!
Pros: Flexible and tough!
Cons: None!
0 of 0 found this helpful
Rockford Fosgate RFK2
Crutchfield customer from Roxbury, MA on 6/8/2020
Excellent wiring kit Easy install
Pros: None
Cons: None
0 of 0 found this helpful
Very flexible cable.
Crutchfield customer from Corpus Christi, TX on 5/30/2020
Positive wire is very flexible for a #4 cable. It has many strands and is comparable to DLRO cable. The packaging claims to exceed NEC cable specs which I think is likely true. The fuse holder was a little difficult to assemble. I really didn't use any of the connectors so I cannot really comment on the quality.
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Rockford Fosgate RFK4
Steve from Apple Valley, CA on 5/25/2020
Top quality 4 gauge power cable. Not cheap but I highly recommend it.
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0 of 0 found this helpful
Talk About A Good Power Supply Wire
Crutchfield customer from Lake View, NY on 5/11/2020
This 4 AWG (Gauge) Power Wire, is one of the easiest products to install. It comes complete with everything you need to supply power from you battery, to your amplier(s); located ANYWHERE in your vehicle! Also comes with a 100 AMP Fuse! Wire is easy to (snake) through your vehicles' firewall, very flexible and durable!
Pros: Flexible line, to be easily (snaked) through your vehicle. Comes with an Easy-To-Setup Guide. Makes everything about the entire project easier, as all amplifiers, speakers, and subwoofers; need a power supply!
Cons: If you need longer than 20-25 feet, you will undoughtably need to order a second Power Wire. (Very Rare Case)
1 of 1 found this helpful
Good product
Crutchfield customer from Redmond, OR on 5/1/2020
Quality product as advertised.
Pros: Does the job
Cons: Would have considered a better wire fuse holder to prevent moisture as it's mounted in the hood compartment.
0 of 0 found this helpful
Rockford Fosgate RFK4
Charles J from Hudsonville, MI on 4/25/2020
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Sketchy fuse holder
Jody from Loganville on 4/21/2020
I give this 3 stars only because wires are great but due to poor design of fuse holder I cannot give it a 5 star. Why Rockford chose to use this crappy excuse for a fuse holder instead of the industry standards of anl or even mini anl confused me. I am a huge fan of rockford still love the Amps they make. But had to order a different fuse holder to use with this. The holder has a small opening for putting in blade fuse but there is no easy way to properly secure fuse the 2 set screws are inside of holder covered by housing with no way to lossen or tighten them without trial and error of taking apart housing and even once I did the screws backed out over a short time making the fuse loose.
Pros: Wires are great
Cons: Fuse holder design is bad
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Rockford Fosgate RFK4
Crutchfield customer from Ellington, MO on 2/10/2020
Good kit. Come with everything I needed to hook up my system. Well worth the money.
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Rockford Fosgate RFK4
Crutchfield customer from Tucson, AZ on 12/14/2019
A great amplifier installation kit. Everything I needed to install my amp and when I don't have to stop and run to the store for extra parts I appreciate that.
Pros: Quality materials.
Cons: Couldn't find any.
0 of 0 found this helpful
A must for your install!
RIck from Kihei, HI on 12/3/2019
Everything you need to provide power for your audio amp. Plenary of length to fit most installations.
Pros: All the parts you will need to complete the install.
Cons: None
0 of 0 found this helpful
Rockford Fosgate RFK4
Crutchfield customer from Albemarle, NC on 10/28/2019
doesn't seem very water proof. would prefer a water tight design next time
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0 of 2 found this helpful
Fosgate Power Cable Kit
Crutchfield customer from Las Vegas, NV on 10/4/2019
Nice kit. Beautiful wire, fine and supple. However it would be nice to be able to adjust the length of the initial lead. Set length limits fuse mounting options.
Pros: Comprehensive kit. High quality components.
Cons: Limited fuse mounting options due to factory set initial lead length.
0 of 0 found this helpful
Good gauge wire
Crutchfield customer from Reseda, CA on 8/18/2019
Easy set up just don't forget to buy rca cables and wire loom because kit doesn't come with it
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0 of 0 found this helpful
Rockford Fosgate RFK4
Crutchfield customer from Pasadena, CA on 7/7/2019
As advertised. Seems to work well so far. Handy to have all together in the kit.
Pros: All needed parts packaged together.
Cons:
0 of 0 found this helpful
Great Amp Kit for installing Rockford Fostgate and all other amps !
Crutchfield customer from Acworth, GA on 4/2/2019
Great amp kit. Just what I needed to install my Rockford Fosgate amp in my truck. True 4ga wiring size. Wire length was spot on. Overall very happy with this kit.
Pros: True 4ga wiring size Great length for installing in F-250 crew cab Satisfies the power need of my 5 channel amp
Cons: None at this time.








1 of 1 found this helpful
RF amp install kit
Jeremy from Stanley, NC on 12/22/2018
This is my first RF amp install kit. The reason I purchased this kit was because it actually extends the warranty of the RF amp I purchased. Two things i noticed when I opened the box was: the 4 ga wires seemed bigger than standard 4 ga wires and the actual weight of the install kit itself. For once I felt like I was getting more than what I paid for and I liked it. Try RF amp install kits, you will like them for sure.
Pros: Get more than what you paid for
Cons: None that I noticed
0 of 0 found this helpful
Rockford Fosgate RFK4
Crutchfield customer from Jericho, VT on 9/17/2018
Excellent, works perfectly. If I had to change something the ground cable could be a little longer.
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0 of 1 found this helpful
Great product
Mike from Fresno, CA on 9/8/2018
Great product complete kit
Pros: Everything needed
Cons: Pricey
0 of 0 found this helpful
Good Wiring for DIY Simple Audio Setup
Ed from South Florida on 7/29/2018
Good wiring to use with the setup that I have in my truck. The wire isn't long enough though for running audio on SUVs and large cars, etc.
Pros: *Great price. *Good quality.
Cons: *Too short.
0 of 0 found this helpful
Rockford Fosgate RFK4
rickie from Sherman, TX on 1/7/2018
I have had knee replacement done so I cant give you a review but your customer service is great
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0 of 3 found this helpful
Nice wire
Brian from California on 9/21/2017
Nice cable and connectors. The cable flexes plenty and has a fuse holder that allows the fuse to be seen easily in case of a blown fuse. This is my 3rd set of this same type of Rockford Fosgate power cable.
Pros: Quality and flexible
Cons:
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Rockford Fosgate RFK4
MATTHEW from Columbia, MD on 9/7/2017
quality cable nice fuse holder
Pros: great stuff
Cons: none
0 of 0 found this helpful
Great cables
Brandon from Lake Ozark, MO on 5/26/2017
Good quality cables. Nice and flexible. Had plenty of length for crew cab with amp mounted under driver seat. Would have still been plenty if amp was mounted under rear seat behind the driver.
Pros: Good quality
Cons: Didn't come with the 60 amp fuse I needed (only 100 amp fuse). So I had to order that separate
0 of 0 found this helpful
Rockford Fosgate RFK4
Jim from Ohio on 4/28/2017
Nice flexible wire made install easy. Zip ties in the kit was a little on weak side for size of wire so I chose to use something bigger so I know the wire is going to stay where I put it.
Pros: Complete kit to get power to amp.
Cons: Small zip ties
0 of 0 found this helpful
Love the build-in fuse holder, perfect length
MikeM from Virginia on 1/9/2016
This is my third subwoofer installation. I've been an audio hobbyist since the 60's and am a repeat customer at Crutchfield. - Rockford Fosgate RFK4 wiring kit Really appreciate the build-in fuse holder, fuse, and the cable disconnects at each end of fuse holder near the battery. The cables were installed in a Toyota Avalon which is longer than most cars. I still had about 2.5 feet of cable to play with in the trunk. To secure the ground cable to the car body metal I had to use the supplied large connector lug. I did have to expand the lug using two pairs of large pliers before inserting the wire end and then had to use a very large and heavy vise to clamp the lug to the wire. I did not need to use any of the small wire connectors that were supplied. Used with: - Pioneer TS-W311D4 12" dual voice coil subwoofer - Sound OrdnanceT Bass Bunker BB12-125S sealed enclosure, 1.27 cubic feet - Rockford Fosgate Power T600-2 - T-Spec 1.5 farad Capacitor
Pros: build-in fuse holder and fuse AWG cable length
Cons: none
0 of 0 found this helpful
Quality kit
Crutchfield customer from Honolulu, HI on 6/30/2015
Great quality amp wiring kit, wires are thick and flexible with nice quality sheathing. An old 8ga Efx kit does not compare in terms of quality. Installed in a ford ranger extended cab with plenty of wire to spare.
Pros: Great quality
Cons: Doesn't come with a patch cable
0 of 0 found this helpful
A+
rabuckg from Oklahoma on 6/6/2015
Simple, clean and easy product to install.
Pros: Nice gauge size that can handle about anything you throw at it. I only have an 800 watt amp, but if I ever upgrade to more power, it is ready for it!
Cons: None
0 of 0 found this helpful
Great kit
Jeff S from Alabama on 4/3/2015
This is a great kit and the wire is of great quality. We installed this in a Ford F250 crews cab truck and the 17' power cable was not long enough, but we had additional high quality wire from a previous install. Recommend you measure closely to make sure you will have enough wire. The only negative was that the fuze holder location was already fixed in place and did not allow us to place fuse where we wanted without wasting wire.
Pros: Quality wire, everything included in kit.
Cons: fuse location was already determined.
0 of 0 found this helpful
Just what you need.
Wrangler from Maryland on 1/17/2015
High quality product. Cable is 100% copper and there is plenty of it.
Pros: quality
Cons: none
0 of 0 found this helpful
high quality
stan from michigan on 8/28/2014
this is a high quality amp installation kit. just what you would expect from rockford fosgate.
Pros: high quality, all the wires are more than long enough
Cons:
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Rockford Fosgate RFK4
Dillon from San Antonio on 8/14/2014
0 of 0 found this helpful
Rockford Fosgate RFK4
This is a nice kit and the wire is exceptional. Everything needed for installation is in the kit. Comes with a 100 amp fuse so if you need a smaller size you will have to purchase one. And, if you need a larger size better check into a different option. Larger size fuses are not compatible with this fuse holder. The 17' power cable may come as a challenge if you have a crew cab truck. It worked in mine with no wire to spare. I would recommend making a closely accurate measurement from where you will mount the power amp and the route you will be taking before purchasing.
Pros: Nice kit. Exceptional quality. Has all the necessities without paying extra for unnecessary frills.
Cons: Make sure your amp doesn't need a larger than 100 amp fuse. Wire length may be a challenge if you don't do some pre-measurements. Especially on crew cab trucks.
0 of 0 found this helpful
Great Wiring Kit
BlameTheBird from Destin, Florida on 4/25/2014
This cable is very flexible, which made it easy to run through my truck. The plastic firewall grommet that comes with this takes a 5/8" hole and then the cable fits loosely through it. I went and got a 1/2" rubber grommet, and then dressed out the opening so that the cable would just slide though the hole. I attached the power cable straight to the tightening bolt on the battery terminal without having to modify the attached connector and was able to attach the 2' long negative cable to a seat mounting bolt once I filed the hole in the attached connector out a little. Overall, a nice setup, other than the fact that it came with a 100 amp fuse and my amp recommended an 80 amp fuse. A little pricy, but with the 50% off deal from Crutchfield when I bought this at the same time as I bought a power amp made it very worth the price.
Pros: 17' long positive cable was plenty long to wire my pickup truck. Supple cabling is easy to run.
Cons: Plastic grommet seems a bit lacking.
0 of 0 found this helpful
Worthy amplifier wire kit.
Amplifier wire kit. from Chesapeake, VA on 3/18/2014
Good value for your buck.
Pros: Won't dent your wallet
Cons: None
0 of 0 found this helpful
Yes!
Mike K. from Plainfield, Illinois on 11/23/2013
Good quality wires with enough to get the job done right!
Pros: Fine quality wires and not cheapy stuff!
Cons: None
0 of 0 found this helpful
Rockford Fosgate RFK4
GeorgeD from Atlanta, GA on 4/9/2013
Good quality wires. some good hook ups plus a great fuse holder
Pros: N/a
Cons: N/a
0 of 0 found this helpful
Limited connection options
Jjkinsd from San Marcos, CA on 5/16/2012
Wire is great quality, provides power where you need it! Came with enough power and ground wire to wire a distribution block and two amps, so that's a plus!
Pros: Quality
Cons: Not enough crimp connectors for the #4 power and ground wire for one amp! In my opinion, at the price of this kit, you should be provided with more connection options as these can be hard to find around town. (I paid half price since I purchased with amp, thanks Crutchfield)
0 of 0 found this helpful
Perfect kit for sound board
Keith from Marrero, LA on 2/4/2012
Great package as wire and fuse was nothing like they used to put out with their amps. I ran it to a power distribution block to serve as the source power for all of my components. Everything was mounted to a piece of 1/2" MDF board so there was no need to run separate wiring for my subwoofer amp and sound processor.
Pros: Nice, complete package, 100 amp fuse was perfect as I had 2 other components running off of the souce power it provided. Easy to handle wire that also went through a spare grommet in the firewall.
Cons: It did not have a spare fuse; though you should not blow one anyway, it's still nice to have so you are not down should it blow for some reason.
0 of 0 found this helpful
Nice Kit.
Kevin from Mesa, AZ. on 6/19/2010
This is a nice kit and made it easy to wire in my new JL XD 600/6 amp. I was worried that the power and ground wires were a bit to short for my 2001 Chevy Silverado Z71 extended cab. However, there was plenty of wire for both the ground and power to wire in the amp under the back seat. The large gauge wire was plenty flexable to run around corners in the truck. The only downfall I can see it that I had to get a better firewall bushing to run the power wire to make sure it did not get nicked. I also replaced the included 100 amp fuse with a 60 amp fuse since JL recomended a 50 amp fuse if you run a single XD 600/6. Save your time running all over town getting wires and get this kit.
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2 of 3 found this helpful