Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Closeout
  3. Car Audio & Electronics Closeout
  4. Car Audio Installation & Accessories Closeout
  5. Car Amplifier Installation & Accessories Closeout
  6. Amplifier Wiring Kits Closeout
  7. Rockford Fosgate RFK4-2

See all parts that fit your 2018 RS5

Rockford Fosgate RFK4-OPEN BOX

4 Gauge Amplifier Power Installation Kit

Rockford Fosgate
Shop all Rockford Fosgate
Product videos
highlight-star-icon

• 4 Gauge Amplifier Power Installation Kit
• 100% Pure Crystal-Oxygen Free Copper
• 17 ft 4 Gauge Power Wire
• 3 ft Ground Wire
• ANL/Maxi Fuse Holder & Fuse

Learn more about the LS-rfk4-OB

We apologize

This item has been discontinued

Show me more products from this category
Go to Category

Product Highlights

• 4 Gauge Amplifier Power Installation Kit
• 100% Pure Crystal-Oxygen Free Copper
• 17 ft 4 Gauge Power Wire
• 3 ft Ground Wire
• ANL/Maxi Fuse Holder & Fuse

Description

Rockford Fosgate brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

Product Features:
  • 4 Gauge Amplifier Power 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
  • ANL 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. 17 ft. of 4 AWG power wire
  2. 3 ft. of 4 AWG ground wire
  3. 20 ft. of 18 AWG remote wire
  4. Maxi fuse holder and fuse
  5. 100 amp fuse

Specifications & Details

Amplifier Kit Specifications
Amp Kit Type
Power
Number of Amplifiers Supported
1
Power/Ground Wire Size
4 gauge
Power Wire Length
17 feet
Ground Wire Length
3 feet
Speaker Wire Included
No
Interconnect (RCA) Signal Cables Included
No
Fuse Holder
MAXI
Fuse Size
100A
Distribution Block Included
No
Complies to AWG Standards
Yes
Wire Material
OFC (100% Oxygen-Free Copper)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details

Manufacturer:

Rockford Fosgate

Model Number:

RFK4-2

Weight:

4.50lbs

Internal SKU:

LS-rfk4-OB

Internal Product ID:

90705

Product and How-to Videos

Customer Ratings & Reviews

Rockford Fosgate RFK4-OPEN BOX thumbnail image
5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%
Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:
Loading...
Sorry, no reviews found
XIV25 main

NVX V Series RCA Audio Interconnect Cable

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

(43)

$12.99

List price $18.99

Add to cart
XIX25 main

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

(24)

$19.99

List price $29.99

Add to cart
V12PW-475 small

T-Spec V12PW-475-OPEN BOX

75 ft. (22.86m) 4 Gauge V12 Series Full OFC True Spec Power Wire

$124.95

List price $259.95

Related Searches

› Rockford Fosgate › Rockford Fosgate Amplifier Wiring Kits › Amplifier Wiring Kits under $100
Save up to 10 different vehicles in your garage
Vehicle
Store Delete

2018 Audi RS5

1997 Dodge Ram 1500

2020 Dodge Durango

2015 Cadillac Escalade

2016 Nissan Leaf

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm

Cancel

This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue

Cancel

Shop your 2018 RS5
Why Use a Vehicle Fit Guide?
Change vehicle | Shop without vehicle
Whoa! Slow down. Add your details below!
additional information required
Add vehicle details to confirm fitment
Ignore fitment details
Find stereos and more that work -- fast.

Additional information:

Remove

Can't find your vehicle? Click here and we'll help.

Where to find vehicle info

Go to Fitment

Didn't find your car?

Submit your details and we'll help!
Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon
Back

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

Back
Track your order
Call our experts
Support Center
Return & Exchanges
Follow on Instagram Instagram logo
Subscribe on YouTube YouTube logo