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NVX N-Series Complete Speaker Upgrade Kit

5.25" and 4x6" N-Series 2 Way Coaxial Car Speaker Upgrade Kit for 1999-2006 GMC Sierra

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• Includes a pair of NVX NSP525 and NVX NSP46 coaxial speakers
• Designed for select 1999-2006 Sierra 2500 / 1500 / 3500
• Speaker adapters and wiring harnesses included
• Plug-and-play installation

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List price $178.95
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-38%

$110.22

 with warranty
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Current Promotions (1 offer)


This offer cannot be combined with any other coupons or offers.

NVX N-Series Complete Speaker Upgrade Kit

25% off


Priced separately $149 19

Promo Savings of $9 74

Total price:

$139 45

Description


NVX brand icon

Authorized dealer

Transform your vehicle's audio performance with this NVX N-Series Speaker Upgrade Package, featuring precision-engineered drivers for crystal-clear sound. This bundle includes the NVX NSP525 5.25 inch coaxial speakers delivering 160W RMS and the NVX NSP46 4x6 inch coaxial speakers rated at 100W RMS. Together, these high-performance N-Series speakers provide a balanced, full-range listening experience with a combined 540W peak power. To ensure a professional and hassle-free setup, this kit includes Metra speaker harnesses and mounting brackets for a perfect fit in your factory locations without the need for wire cutting.

NVX NSP525

240W Peak (160W RMS) 5.25" N-Series 2 Way Coaxial Car Speakers
Quantity: 1

Product Details:

  • 5-1/4" N-Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 480 watts per pair / 240 watts each
    • RMS: 160 watts per pair / 80 watts each
  • Polypropylene cone material
  • Nitrile Butadiene Rubber NBR speaker surround
  • 3/4" Silk Dome tweeters
  • CEA-2031 compliant: Yes
  • 1" voice coil
  • Ferrite magnet motor structure
  • Top-mount Depth: 1.96"
  • Cutout Dimensions: 4.72"
  • Impedance: 4 ohm
  • Frequency Response: 87 - 20000 Hz
  • Sensitivity: 88 dB
  • Optional NVX XGR525 speaker grilles (Sold separately)
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

PDF Icon Check out the NSP525 Owner's Manual

NVX NSP46

300W Peak (100W RMS) 4x6" N-Series 2 Way Coaxial Car Speakers
Quantity: 1

Product Details:

  • 4" x 6" N-Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 300 watts per pair / 150 watts each
    • RMS: 100 watts per pair / 50 watts each
  • Polypropylene cone material
  • Nitrile Butadiene Rubber NBR speaker surround
  • 3/4" Silk Dome tweeters
  • CEA-2031 compliant: Yes
  • 1" voice coil
  • Ferrite magnet motor structure
  • Top-mount Depth: 1.81"
  • Cutout Dimensions: 4.01 x 5.90 
  • Impedance: 4 ohm
  • Frequency Response: 90 - 20000 Hz
  • Sensitivity: 86 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

PDF Icon Check out the N-Series Coaxial Speakers Owner's Manual

Metra 72-4568

Install New Speakers in select 1990-2021 vehicles from Chevrolet, GMC, Buick
Quantity: 2

Product Features:

Metra 82-3002

5.25" or 6.5" Speaker Bracket for select 1995-2014 vehicles from Chevrolet, GMC, Hummer
Quantity: 1

Product Details:

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2016 Kia Soul EV is not compatible. Change vehicle or See list of compatible similar products


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Specifications & Details


Vehicle-specific features
Vehicle-specific accessories included
Speaker harnesses included
Speaker mounting adapter brackets included
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

NVX

Model Number:

99-06-gmc-sierra-spkg

Weight:

7.25lbs

Internal SKU:

99-06-gmc-sierra-spkg

Internal Product ID:

188553

Customer Ratings & Reviews


NVX N-Series Complete Speaker Upgrade Kit thumbnail image

5 star
86%
4 star
10%
3 star
2%
2 star
0%
1 star
0%



Durability
4.9
Value
4.9
Features
4.8
Design
4.9
Usability
4.9

Customer Photos & Videos


Customer Reviews

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Wife's Honda Crv

The following review is for NSP525, which is a part of the bundle you are viewing.

I ordered these speakers for her CRV was recommended by West the sales rep. Nvx NSP525 two sets they sound great. Ready to the order the 61/2 for my car. I recommended this product and the reps are nice and know.

By edwin on October 6, 2014

119 found this helpful


good speakers

The following review is for NSP46, which is a part of the bundle you are viewing.

I got 2 sets for my 1988 silverado and they fit with no problem and they sound real good and they look good.

By CARCRZ on January 20, 2014

122 found this helpful


Great product

The following review is for NSP525, which is a part of the bundle you are viewing.

These speakers look great and are very easy to install. Sound great too

By Jonathan on March 1, 2015

109 found this helpful


Nice speakers for the price.

The following review is for NSP46, which is a part of the bundle you are viewing.

I bought these to replace the stock, blown dash speakers in a 94 Chevy 1500. They are a little too tall for the speaker grilles to sit flat (the tweeter sits above the speaker about 1/8"), and they slightly interfere with the passenger side defroster vent tube, but that's universal fit for you. They sound good considering they're powered by a stock 20 year old am/fm radio though. I would definitely recommend them as an upgrade from stock speakers.

By Michael on January 10, 2015

115 found this helpful


Great sound!

The following review is for NSP46, which is a part of the bundle you are viewing.

They sound great in my 88 Pontiac Fiero Would purchase again.

By Gerald on January 9, 2015

115 found this helpful


Great Speakers

The following review is for NSP46, which is a part of the bundle you are viewing.

I have a pair of these in my 2003 Cavalier, they bolted right into place, and they sound amazing! Running off headunit, these and my 6x9 NVX speakers in the back make a huge difference over the original speakers! Very impressed with NVX, and will continue to buy their products

By Liam on November 5, 2014

120 found this helpful


Very Good Product!

The following review is for NSP46, which is a part of the bundle you are viewing.

These speakers fit perfectly, sound great, and is very affordable. I would highly recommend this product

By Aurora on November 19, 2014

113 found this helpful


metra 72-4568

The following review is for 72-4568, which is a part of the bundle you are viewing.

I have used these in a lot of different cars over the last few month's, just makes life A LOT easier. No more hacking up stock speaker harnesses just plug in and you're good to go. I would highly recommend these to anyone, and for the price you can't go wrong.

By greenlight audio on March 3, 2014

104 found this helpful


Great Backfill

The following review is for NSP525, which is a part of the bundle you are viewing.

I purchased these to use as backfill in my NVX system and I am pleased to report that they have met my expectations to a T. They are plenty clear, and handle the power I am throwing at them very well. Like most speakers of this size and design they are limited by how much bass they can produce, but for rear fill in a system they are perfect. My kids say this is a huge improvement over the Bose speakers they replaced.

By Christopher on June 9, 2014

107 found this helpful


97 Grand Prix

The following review is for 72-4568, which is a part of the bundle you are viewing.

These were exactly what I needed to use with my 97 Grand Prix. Simple to use and very convenient. Does what they are made for.

By Joel on February 20, 2015

99 found this helpful



NSP46 main

NVX NSP46

• 150 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 1.81"

(34)

$49.99

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NSP525 main

NVX NSP525

• 240 watts Peak Each, 80 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 1.96"

(27)

$54.99

List price $65.99

VSP525 main

NVX VSP525

• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.16"

(23)

$79.99

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VAD10004v2 main

NVX VAD10004 v2 (VAD10004v2)

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(24)

$279.99

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VAD11005v2 main

NVX VAD11005 v2 (VAD11005v2)

• 80 watts x 4 channel + 350 watts x 1 channel @ 4 ohm
• 125 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel Amplifier

(46)

$349.99

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LVE-GM-SLVECG1-D10S main

NVX BOOST Box - 1999-2006 Chevrolet Silverado, GMC Sierra - LVE-GM-SLVECG1-D10S

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• Compatible with select 1999-2006 Silverado 2500 HD / 1500 / 3500 / 2500 and Sierra 1500 / 3500 / 2500 / 2500 HD and SIerra 2500 HD
• 350 watts RMS (700 watts Peak)
• Final Impedance: 1-ohm

$349.99

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LVE-GM-SLVECG1-D12S main

NVX BOOST Box - 1999-2006 Chevrolet Silverado, GMC Sierra - LVE-GM-SLVECG1-D12S

• Custom-Fit BOOST Sealed truck enclosure with 2 12" S Series Subwoofers
• Compatible with select 1999-2006 vehicles from GMC, Chevrolet
• 400 watts RMS (800 watts Peak)
• Final Impedance: 1-ohm

$369.99

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NVX N-Series Speaker Upgrade Kit

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Marathon MA-ELPSILDIA (Silver-Diamond)

eLight Series, Professional Record and LP Road Case Holds up to 80 LP's

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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.