Garage
Shop

See all parts that fit your 1998 A6

NVX Big 3 Package

Big 3 Upgrade Combo Package 1/0 AWG EnvyFlex Cable, Wire Cutters, 2 Battery and 4 Ring Terminals

NVX
Shop all NVX
EXCLUSIVE
Product videos
highlight-star-icon

• Includes NVX 1/0 Power & Ground Cable
• Battery Terminal Clamps
• Helps Eliminate Dimming Headlights
• Stops Drops in Voltage
• Improves Vehicles System Charging
• Includes Wire & Cable Cutter/Stripper

Learn more about the nvxbig3package

We apologize

This item has been discontinued


Loading...
Limited time!

Rockford Fosgate Prime R165X3

180W Peak (90W RMS) 6.5" Prime Series 3 Way Coaxial 4-ohm Speakers

154
-12.50%

$69.99

List price $79.99

Product Highlights


• Includes NVX 1/0 Power & Ground Cable
• Battery Terminal Clamps
• Helps Eliminate Dimming Headlights
• Stops Drops in Voltage
• Improves Vehicles System Charging
• Includes Wire & Cable Cutter/Stripper

Description


NVX brand icon

Authorized dealer



Sonic Exclusive Big 3 Upgrade Combo Package

The Big 3 Upgrade should be the first step you take when adding an aftermarket sound system to your vehicle. The Big 3 consist of upgrading the alternator wire to the battery, the negative battery cable to vehicle ground, and engine ground to chassis. This process is sure to help eliminate dimming headlights and voltage drops by providing you with enough juice to power everything in your vehicle without additional resistance. 1/0 Gauge power & ground wire should be used when executing the upgrade, the thicker wire ensures the best possible current transfer and can re-energize your vehicle's electrical system.

Available only at Sonic Electronix is the Ultimate Big 3 Upgrade Kit. This exclusive Big 3 combo package comes with two 5 ft. pieces of 1/0 AWG Metallic Gray Power/Ground Cable, one 5 ft. piece of 1/0 AWG Metallic Powder Blue Power/Ground Cable, two Positive/Negative Battery Terminal Clamps, four 0/2 Gauge Ring Terminals, and a pair of Wire & Cable Cutters to add some convenience to this upgrade.

Benefits of Big 3 Upgrade

  • Helps eliminate dimming headlights
  • Helps stop drops in voltage
  • Enhances your vehicles electrical system stability
  • Allows you to add a second battery or high output capacitor for high powered sound systems
  • Improves vehicles system charging
  • Increases compatibility when using high performance alternators and batteries
  • Strengthens power current to everything in your vehicle without additional resistance
Note: For information on installing this Big 3 Upgrade kit, please read our blog and watch the step by step installation video.

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

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

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
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 522F main

JBL Club 522F (SPKCB522FAM)

270W Peak (90W RMS) 5.25" Club Series 2 Way Coaxial 3-ohm Speakers

-42.29%

$74.99

List price $129.95

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


Best selling similar products

BBG3KT small

Belva BBG3KT

• Upgrade Your Factory Power and Ground Wire
• Perfect for Dealing with Dimming Lights
• Improve the Efficiency of Your Vehicle's Electrical System
• Use for Systems 250A or Less
• Includes All Necessary Wiring
• Ring Terminals are Pre-Connected to Power and Ground Wire

(48)

$49.99

List price $79.99

XBG3PK small

NVX XBG3PK

• Upgrade Your Factory Power and Ground Wire
• Perfect for Dealing with Dimming Lights
• Improve the Efficiency of Your Vehicle's Electrical System
• Use for Systems 350A or Less
• Includes All Necessary Wiring
• Ring Terminals are Pre-Connected to Power and Ground Wire

(91)

$109.99

List price $119.99

Specifications & Details


Power / Ground Cable Specifications
Wire / Cable Type
Power / Ground Cable
Length (ft.)
15 feet
Wire Gauge
0 gauge
Primary Color
Matte Grey
Complies to AWG Standards
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Manufacturer:

NVX

Model Number:

Big-3-Package-NVX

Weight:

8.94lbs

Internal SKU:

nvxbig3package

Internal Product ID:

72349

Product and How-to Videos


  • NVX 100% OFC Power and Ground Wire | Amp Installation Kits & Big 3 Kits
  • How To Install the Big 3 Upgrade | Improve Your Vehicle's Electrical Charging System | Car Audio

Customer Ratings & Reviews


NVX Big 3 Package thumbnail image

5 star
90%
4 star
7%
3 star
2%
2 star
1%
1 star
0%



Durability
4.9
Value
4.9
Features
4.8
Design
4.9
Usability
5

Customer Photos & Videos


Customer Reviews

Sort by:

Loading...

good over all.

The following review is for XW0GR5, which is a part of the bundle you are viewing.

good cable, suits good for what I need it to.

By Jose on April 23, 2014

132 found this helpful


The Real Deal

The following review is for XW0GR5, which is a part of the bundle you are viewing.

Great Wire! True to gauge and real copper. Makes tight bends hand has a high quality jacket. It is expensive but if you value quality over quantity this is it.

By hogie0101 on June 20, 2014

132 found this helpful


Exceptional Quality

The following review is for XW0GR5, which is a part of the bundle you are viewing.

Some of the best quality wires I've ever used. My car stereo system is wired mostly with nvx power wires. I was totally impressed with the difference in voltage increase which lead to a overall better sound quality.

By liclemack on October 5, 2014

122 found this helpful


Quality

The following review is for XW0GR5, which is a part of the bundle you are viewing.

Quality, Reliable, best in class wires nothing compares to these wires

By Liclemack on November 17, 2013

121 found this helpful


Great wire

The following review is for XW0GR5, which is a part of the bundle you are viewing.

Great product the wire is really flexible and easy to work with well with the money and would re commend to anyone

By Antonio on October 17, 2014

121 found this helpful


NVX XWOGR5

The following review is for XW0GR5, which is a part of the bundle you are viewing.

Actually fits into terminals and fuse blocks. Good choice would buy again.

By Jonathan on March 16, 2014

123 found this helpful


flawless

The following review is for XW0GR5, which is a part of the bundle you are viewing.

works flawlessly would recommend buying this product if you want a easy install

By Steven on December 27, 2013

119 found this helpful


Great Stuff

The following review is for XW0GR5, which is a part of the bundle you are viewing.

Very flexible and durable. True gauge. Used this to wire up my amps and also used some of it to do the "big 3." I liked NVX so much that I stripped out all my speaker wiring and bought 16 gauge NVX wire and ran that instead.

By Mark on November 25, 2013

118 found this helpful


Made a Difference

The following review is for XW0GR5, which is a part of the bundle you are viewing.

Hi all. I decided to try this wire. Because of the Price I decided to Upgrade my Ground wires from 4 Gauge. Both the Capacitor and from the Battery to Ground (Body). Afterwards I noticed the Voltmeter on the Capacitor increased slightly. About .2V. When I get enough money, I am Upgrading the Power (+) wiring. BTW, I am running Kicker IX500.1. And plan on Upgrading to the IX1000.5. So I want to get the Wiring (To the Cap) done first. And like others have said, This wire for being 1/0 Gauge is Very Flexible. Which I am surprised at since I have never used this gauge before.

By Chris on January 17, 2014

120 found this helpful


True Gauge

The following review is for XW0GR5, which is a part of the bundle you are viewing.

Big ground wire, extremely flexible for a 0 gauge wire and in my opinion it surpasses the 0 gauge wire standards. Great product from NVX once again.

By kevin on August 13, 2013

118 found this helpful




HE-B3950 small

Heise HE-B3950

210W Universal 39.5” Blackout Series Single Row 42 LED Light Bar

$597.99

List price $664.99

KHC_TP small

Kinetik KHC-TP

Terminal Posts For Kinetik Power Cells

(10)

$10.99

List price $24.99

APA450-RB small

Clarion APA450 Refurbished

(Factory Refurbished) 400W Max, 4-Channel Power Amplifier

$59.99

List price $149.99

82-92-CHEVY-CAMARO-S-INF small

Infinity Reference Series Factory OEM Speaker Upgrade Package

Fits select 1981-1992 Camaro

(25)

$267.88

List price $341.88

DGDB10248G small

Xscorpion DGDB10248G

Digital Gold Power Distribution Block w/ One 0/2 ga In & Two 4/8 ga, One 2/4 ga & Two 8 ga Outs

(3)

$14.99

List price $29.99

BCCAP16 small

Belva BCCAP16 (CCL1614)

16/14 Gauge Nylon Crimp Cap 100 pack

(3)

$4.99

List price $7.99

78-83-CHEVY-CORVETTE-S-INF small

Infinity Reference Series Factory OEM Speaker Upgrade Package

Fits select 1978-1982 Corvette

(25)

$267.88

List price $341.88

HD-SPKPLUG-4-RP small

JL Audio HD-SPKPLUG-4-RP

4-Pole Speaker Output Plug for HD and MHD Amplifiers

(2)

$30.00

List price $30.00

NP509 small

Clarion NP509 (NP-509)

Flash Memory GPS Navigation Add-on System for Clarion VZ709 / VX709 / VZ509

(3)

$159.99

List price $499.99

Related Searches


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

1998 Audi A6

1989 Dodge Raider

2011 GMC Terrain

2018 Mazda 3

2007 Buick Rainier

2006 Audi A4

2017 Dodge Journey

2007 BMW 550i

2011 Ford Fiesta

2017 Ford Flex

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.