--- product_id: 1897824 title: "Rockford RFK4X 4 AWG Complete Amplifier Install Kit" brand: "rockford fosgate" price: "£174.86" currency: GBP in_stock: true reviews_count: 11 category: "Rockford Fosgate" url: https://www.desertcart.co.uk/products/1897824-rockford-rfk4x-4-awg-complete-amplifier-install-kit store_origin: GB region: United Kingdom --- # 100 Amp MAXI Fuse Protection 4 AWG Power & Ground Cables All Brass Terminals & Hardware Rockford RFK4X 4 AWG Complete Amplifier Install Kit **Brand:** rockford fosgate **Price:** £174.86 **Availability:** ✅ In Stock ## Summary > 🔊 Power Your Ride Like a Pro — Don’t Just Listen, Command the Road! ## Quick Answers - **What is this?** Rockford RFK4X 4 AWG Complete Amplifier Install Kit by rockford fosgate - **How much does it cost?** £174.86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/1897824-rockford-rfk4x-4-awg-complete-amplifier-install-kit) ## Best For - rockford fosgate enthusiasts ## Why This Product - Trusted rockford fosgate brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Installation Kit:** Includes every terminal, spade connector, and rubber boot you need for a clean, professional setup—no last-minute runs to the store. - • **Heavy-Duty 100 Amp MAXI Fuse:** Industry-grade fuse ensures your system stays protected while pushing serious wattage without compromise. - • **Trusted Rockford Fosgate Quality:** Join thousands of audiophiles who rely on the global leader in car audio innovation to power their sound experience. - • **Noise-Reducing Twisted RCA Cables:** Engineered to minimize interference and distortion, delivering crystal-clear audio fidelity for your premium sound system. - • **True 4 AWG Oxygen-Free Copper Wiring:** Maximize power delivery with pure OFC cables designed for zero signal loss and ultimate conductivity. ## Overview The Rockford RFK4X Amplifier Install Kit is a premium, true 4 AWG oxygen-free copper wiring solution designed for high-performance car audio systems. Featuring a robust 100 Amp MAXI fuse, all-brass hardware, and noise-reducing twisted RCA cables, this kit ensures maximum power delivery, system protection, and pristine sound quality. Perfect for serious audiophiles and professionals seeking a clean, reliable, and efficient amplifier installation. ## 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! Review: Great wiring for system - Great product exactly what I wanted thanks Review: Great kit! - The kit is great! I’m guessing the lowered ratings for the fuse was given by people that didn’t know to remove the emblem on the fuse casing and tighten the fuse in it with the tool provided. I thought it worked very well pushing power to my dual Rockford Fosgate punch P3 12’s, and my Rockford Fosgate P1000xbd mono amp. Which the amp is certified at 1477 watts. No issues at all, and highly recommended. ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0012BYOSK | | Best Sellers Rank | #113 in Car Amplifier Wiring Kits | | Brand | Rockford Fosgate | | Brand Name | Rockford Fosgate | | Customer Reviews | 4.7 out of 5 stars 610 Reviews | | Global Trade Identification Number | 00368298575878, 00780687325534 | | Included Components | RFK4X | | Item Dimensions | 11.5 x 2.2 x 13.5 inches | | Item Type Name | Rockford RFK4X 4 AWG Complete Amplifier Install Kit | | Item Weight | 5 Pounds | | Item dimensions L x W x H | 11.5 x 2.2 x 13.5 inches | | Manufacturer | Rockford Fosgate | | Material Type | Brass, Copper | | Model | RFK4X | | Mounting Type | Freestanding | | Number of Channels | 4 | | Part Number | RFK4X | | Specification Met | Cea-2015 | | UPC | 368298575878 780687325534 | | Unit Count | 1.0 Count | | Voltage | 12 Volts | | Warranty Description | 1 year parts and laborand labor. | ## Product Details - **Brand:** Rockford Fosgate - **Item dimensions L x W x H:** 11.5 x 2.2 x 13.5 inches - **Manufacturer:** Rockford Fosgate - **Mounting Type:** Freestanding - **Voltage:** 12 Volts ## Images ![Rockford RFK4X 4 AWG Complete Amplifier Install Kit - Image 1](https://m.media-amazon.com/images/I/91OrAg5OCHL.jpg) ![Rockford RFK4X 4 AWG Complete Amplifier Install Kit - Image 2](https://m.media-amazon.com/images/I/91cJYtMbFOL.jpg) ![Rockford RFK4X 4 AWG Complete Amplifier Install Kit - Image 3](https://m.media-amazon.com/images/I/31+q6-2okYL.jpg) ## Questions & Answers **Q: I do t get what holds the fuse in, its loose and will wiggle out over time, what am I missing?** A: If you look at the picture, you can see the red power cable. At the very top center of the picture is a gray plastic container (approx 6-8" from the end of the power cable). That is the fuse container. The fuse is inside and can't wiggle out. **Q: How much speaker wire do you get?** A: Kit includes 17 feet of 8 AWG power wire, 3 foot of 8 AWG ground wire, 30 feet of 16 AWG speaker wire, (1) 16 feet twisted pair RCA, AGU fuse holder and fuse, 20 feet of remote wire, 40 Amp fuse. **Q: Is this enough wire to run for a f150 supercab ?** A: I am inclined to say yes, but to be sure, you should measure. You need to figure out where you are going to mount your amplifier, and how you plan on routing your power cable. There is 17/18 feet. of Power cable provided, so this is usually sufficient... but I would measure just to be safe. **Q: Does this come with rca cables?** A: 16 guage cables ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great wiring for system *by J***N on March 28, 2026* Great product exactly what I wanted thanks ### ⭐⭐⭐⭐⭐ Great kit! *by R***Y on April 26, 2025* The kit is great! I’m guessing the lowered ratings for the fuse was given by people that didn’t know to remove the emblem on the fuse casing and tighten the fuse in it with the tool provided. I thought it worked very well pushing power to my dual Rockford Fosgate punch P3 12’s, and my Rockford Fosgate P1000xbd mono amp. Which the amp is certified at 1477 watts. No issues at all, and highly recommended. ### ⭐⭐⭐⭐⭐ This is a COMPLETE wiring kit! *by R***N on October 19, 2011* 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. ## Frequently Bought Together - Rockford RFK4X 4 AWG Complete Amplifier Install Kit - Rockford Fosgate Punch PEQ Equalization Remote - Kicker 46KISLOC2 K-Series Stereo Line-Output Converter w/Remote Turn-On Output --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/1897824-rockford-rfk4x-4-awg-complete-amplifier-install-kit](https://www.desertcart.co.uk/products/1897824-rockford-rfk4x-4-awg-complete-amplifier-install-kit) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-04*