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2003 Chevrolet TrailBlazer EXT

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Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Speakers & Speaker Installation for 2003 Chevrolet TrailBlazer EXT

Find speakers to upgrade your sound and fit in the factory speaker location for your TrailBlazer EXT.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

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Dash Corner Speakers

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Front Door Speakers

Speakers for your front door panels

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Rear Door Panel Speakers

Speakers for your rear door panels

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Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
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NVX Front N-Series Speaker Upgrade Kit for 2002-2009 Chevy Trailblazer

Pair of 6.5" NVX N-Series Speaker Upgrade Kit with Metra Speaker Adapters and Harnesses | Fits select 2002-2009 TrailBlazer and TrailBlazer EXT

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NVX Front N-Series Speaker Upgrade Kit for 2002-2009 Chevy Trailblazer

Pair of 6.5" NVX N-Series Speaker Upgrade Kit with Metra Speaker Adapters and Harnesses | Fits select 2002-2009 TrailBlazer and TrailBlazer EXT

• Front Door NVX 6.5" Coaxial Speakers
• Metra Speaker Harnesses
• Plug-n-play Installation

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found car based on your search
Fits your TrailBlazer EXT
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-36% $95.97

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NVX Rear N-Series Speaker Upgrade Kit for 2002-2009 Chevy Trailblazer

Pair of 6.5" NVX N-Series Speaker Upgrade Kit with Metra Harnesses | Fits select 2002-2009 TrailBlazer and TrailBlazer EXT

02-09-chevy-trailblze-rspkg big
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NVX Rear N-Series Speaker Upgrade Kit for 2002-2009 Chevy Trailblazer

Pair of 6.5" NVX N-Series Speaker Upgrade Kit with Metra Harnesses | Fits select 2002-2009 TrailBlazer and TrailBlazer EXT

• NVX 6.5" Coaxial Speakers
• Metra Speaker Harnesses
• Plug-n-play Installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your TrailBlazer EXT
214
List price $122.98
-44% $68.99

In stock

Add to Cart
 
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    FAQ for Speakers in 2003 TrailBlazer EXT

    Q: Can I upgrade or change the Speakers in 2003 Chevrolet TrailBlazer EXT?

    A: Yes this page includes all the best Speakers that work in your TrailBlazer EXT.

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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.

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