Garage
Shop

See all parts that fit your 2010 S5

Soundstream WK-40X

Complete 4 Gauge CCA Amplifier Wiring Kit w/ 2 Channel RCA Interconnects

highlight-star-icon

• 4AWG Complete Amplifier Kit
• 2-Channel RCAs included
• Made from Copper Clad Aluminum
• ANL Fuse Holder Included
• RCAs Made with Twisted Pair Technology

Learn more about the wk40x

We apologize

This item has been discontinued


Loading...
72-9002 main

Metra 72-9002

Install New Speakers in select 1994-2024 vehicles from Audi, Mercedes-Benz, Chevrolet

5
-26.68%

$10.99

List price $14.99

82-9101 main

Metra 82-9101

6" to 6 3/4" Speaker Adapter for select 2000-2023 vehicles from Audi

1
-56.27%

$13.99

List price $31.99

Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

CVP8 main

Cerwin-Vega CVP8 (Sold Individually)

350W Peak (170W RMS) 8" CVPRO Series Pro Full Range 4-ohm Speaker

-16.67%

$49.99

List price $59.99

Stage3 607C main

JBL Stage3 607C (STAGE3607CAM)

300W Peak (100W RMS) 6.5" Stage3 Series 2-way Component 3-ohm Speakers

1
-27.79%

$129.95

List price $179.95

PRO-ZT6 main

DS18 PRO-ZT6 (Sold Individually)

450W Peak (225W RMS) 6.5” PRO Series Hybrid Coaxial Midrange 4-ohm Motorcycle and Powersports Loudspeaker

6

JBL SHOCK WAVE 150W65 (JBLSPKSW150W65)

600W Peak (300W RMS) 6.5" Shock Wave Series 4-ohm Midrange Speakers

5
-7.70%

$119.95

List price $129.95

Description


Soundstream brand icon

Authorized dealer

General Features:

  • 4 gauge Complete Amplifier Installation Kit
  • Premium power and ground wire provides optimal power transfer
  • Made from Copper Clad Aluminum
  • 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
  • ANL Fuse holder offers ideal protection for Mid powered systems
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Package Includes:

  1. 17 ft. of 4 AWG power cable
  2. 3 ft. of 4 AWG ground cable
  3. 17ft. of remote turn-on wire
  4. 17ft. of (color) twisted pair shielded RCA cable
  5. 25ft. of 16 AWG speaker wire
  6. 4 AWG in-line ANL fuseholder
  7. Complete Installation Accessories

Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

122
-33.36%

$79.96

List price $119.99

Club 322F main

JBL Club 322F (SPKCB322FAM)

150W Peak (50W RMS) 3.5" Club Series 2 Way Coaxial 3-ohm Speakers

1
-27.29%

$79.95

List price $109.95

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

28
-10.53%

$84.99

List price $94.99

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

12
-9.16%

$109.00

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

Club 620F main

JBL Club 620F (SPKCB620FAM)

330W Peak (110W RMS) 6.5" Club Series 2-way 3-ohm Shallow Mount Coaxial Car Speakers

2
-38.48%

$79.95

List price $129.95

PH654 main

Cerwin-Vega PH654

600W Peak (300W RMS) 6.5" PRO Series Full Range Coaxial 4-ohm Speakers

2
-16.67%

$189.99

List price $227.99


Best selling similar products

BAK42 small

Belva BAK42

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1200 Watts RMS
• Premium (CCA) Copper Clad Aluminum
• Helical Twist 2-Channel RCA Cable
• ANL/Mini-ANL Fuse Holder with 80 amp fuse
• Complies to American Wire Gauge standards

(169)

$34.99

List price $59.99

BAK82 small

Belva BAK82

• Complete 8 Gauge Amplifier Installation Kit
• For Amplifiers Up To 600 Watts RMS
• Premium (CCA) Copper Clad Aluminum
• Helical Twist 2-Channel RCA Cable
• ANL/Mini-ANL Fuse Holder with 60 amp fuse
• Complies to American Wire Gauge standards

(97)

$24.99

List price $49.99

AK01 small

InstallBay Complete 0 Gauge Dual-Amp Kit (AK01)

• Complete 0 Gauge Amplifier Installation Kit
• Designed for Systems up to 3600 Watts
• Includes Everything Needed for Installation
• Premium Power and Ground Cable

(110)

$164.99

List price $183.99

XKIT46 small

NVX XKIT46

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 5/6-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

(45)

$129.99

List price $179.99

XKIT44 small

NVX XKIT44

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 4-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

(80)

$119.99

List price $155.99

XKIT82 small

NVX XKIT82

• Complete 8 Gauge Amplifier Installation Kit
• For Amplifiers Up To 800 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 60 amp fuse
• CEA-2015 and BC5W2 Compliant

(60)

$79.99

List price $95.99

XKIT42 small

NVX XKIT42

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

(124)

$109.99

List price $143.99

XAPK4 small

NVX XAPK4

• 4 Gauge Power Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

(78)

$99.99

List price $131.99

SK101 small

Stinger SK101

• 1/0 gauge Power Amplifier Installation Kit
• Designed specifically for car audio systems up to 4000 watts
Stinger SHD201 water-resistant ANL fuse holder included

(4)

$65.99

List price $119.00

XAPK1D small

NVX XAPK1D

• 1/0 Gauge Dual Amplifier Power Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• Two brass and satin chrome distribution blocks
• CEA-2015 and BC5W2 Compliant

(67)

$219.99

List price $299.99

Specifications & Details


Amplifier Kit Specifications
Amp Kit Type
Complete
Number of Amplifiers Supported
1
Power/Ground Wire Size
4 gauge
Power Wire Length
17 feet
Ground Wire Length
3 feet
Speaker Wire Included
Yes
Speaker Wire Length
25 feet
Remote Wire Length
17 feet
Interconnect (RCA) Signal Cables Included
2 Channel
Fuse Holder
ANL
Wire Material
CCA (Copper-Clad Aluminum)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

WK-40X

Weight:

4.00lbs

Internal SKU:

wk40x

Internal Product ID:

146247

Customer Ratings & Reviews


Soundstream WK-40X thumbnail image

5 star
71%
4 star
14%
3 star
0%
2 star
14%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Worked great for me

I got this to use to install the amp on my 2011 Ultra Classic. The kit had everything I needed and worked great. It was a Soundstream amp and the wires were a perfect fit. I would definitely recommend this kit to anyone installing an amp. Worked for me.

By Anonymous on October 23, 2018 Checkmark Icon Verified purchase

3 found this helpful


Not true 4 gauge, more like 6 or 8

I would not recommend this product if you are looking for true 4 gauge wiring. It did come with everything needed.

By Anonymous on August 12, 2018

3 found this helpful


wk-40x

Good kit for the money,but not 4 gauge,Iuse these CCA wire kits for 500-750 watt amps,cant beat the price here.

By Anonymous on September 26, 2018 Checkmark Icon Verified purchase

2 found this helpful


Soundstream WK-40X

Had everything I needed and worked great. It was the same brand as my amp.

By Anonymous on May 29, 2018

2 found this helpful


Soundstream WK-40X

Quality amp wiring kit. Everything you need to get started

By Anonymous on May 12, 2018

2 found this helpful


Soundstream Wiring kit is the bomb

I use all there wiring kits of every size in all my cars, excellent grade of wiring, never any problems with it.

By Anonymous on November 22, 2019 Checkmark Icon Verified purchase

1 found this helpful


Great cables

Really good kit. I like how the wires feel and everything is already crimped.

By Anonymous on July 23, 2018

1 found this helpful




SSBK-2 small

Ballistic SSBK (by Metra)

36 ft. of "Silence It" Sound Dampening Kit for Entire Car

(2)

$335.99

List price $373.99

CWR12G small

Kicker CWR12G (43CWR12G)

Grille for Select Kicker 12" Subwoofers

(1)

$24.99

List price $24.99

BassPro SL small

JBL BassPro SL Compact Powered Bass System

250 Watt Peak 8" Powered Under-Seat Compact Subwoofer Enclosure System

(5)

$199.95

List price $349.95

BAVTM small

Belva BAVTM

12V - 18V DC Car / Marine Voltmeter Voltage Meter Monitoring Gauge

(10)

$4.99

List price $15.99

SMA2100.1 small

Autotek SMA2100.1

2100W Monoblock Street Machine Series Class D Amplifier

(3)

$99.99

List price $349.99

BB1400.1 small

Planet Audio BB1400.1

1900W Max Big Bang Series Class D Monoblock Amplifier with Remote Level Control

(1)

$269.99

List price $479.99

SWRGM-49L small

Crux SWRGM-49L Wiring Interface

Install new car stereo and retains steering wheel audio controls and other factory features in select 2014-2019 vehicles from Chevrolet, GMC, Cadillac

(2)

$122.85

List price $191.10

DAD2438 small

Absolute DAD2438

Digital Read-out Distribution Block: 1 4 gauge input to 3 8 gauge outputs

(1)

$19.99

List price $44.99

FR1500.1 small

Sound Storm Labs (SSL) FR1500.1

1500W Max (1125W RMS) Force Series Class A/B 2-Ohm Stable Monoblock Amplifier

(2)

$69.99

List price $99.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2010 Audi S5

2002 Dodge Ram 3500

2025 Ford Bronco

2004 Toyota Matrix

2002 Ford Explorer

2007 Mazda CX-7

2021 Kia Stinger

1977 Mercury Comet

1997 Ford Taurus

2003 Porsche Cayenne

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

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.