2003 Chevrolet Avalanche 2500 Stereos

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Keep Your 2003 Chevrolet Avalanche 2500 in Top Shape with Quality Stereos

Whether you’re repairing or upgrading your Stereo, using high-quality parts is key to keeping your 2003 Chevrolet Avalanche 2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Radio Installation Kits, Radio Wiring Harness, and Speaker Relay. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2003 Chevrolet Avalanche 2500 Stereo at Advance Auto Parts is around $25.59, with a range that starts at $1.99 and goes up to $51.99. With 5 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP555GM, Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHGM2, and Dorman Clip Nut – Wide Panel-No. 8 X 3/8 In, Panel Range .025 In – .125 In, 45406 start at just $1.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Stereo, don’t forget to check out other key components like Antennas and Speakers. At Advance Auto Parts, we’re here to help you keep your 2003 Chevrolet Avalanche 2500 in peak condition, inside and out.

Essential 2003 Chevrolet Avalanche 2500 Stereos

Dorman – Dorman Clip Nut – Wide Panel-No. 8 X 3/8 In, Panel Range .025 In – .125 In, 45406 (Part No.45406)

Dorman Clip Nut - Wide Panel-No. 8 X 3/8 In, Panel Range .025 In - .125 In, 45406

from

$1.99
Dorman offers a comprehensive line of Clip / Spring Nuts for a range of automotive applications. They are available for use with a large variety of screw sizes, throat depths, and panel ranges.
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Metra Electronics – Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP555GM (Part No.AAP555GM)

Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP555GM

from

$31.99
Metra AAP555GM installation kit replaces the OEM radio with an aftermarket radio for General Motors 1995 to 2012 models. This kit replaces the OEM radio and allows an aftermarket radio to be installed in the factory radio locations. This stereo installation kit has been engineered to help you install a 2 inch tall (Single-DIN) or a 4 inch (Double DIN) aftermarket radio into the original vehicle dashboard, making radio replacement simple. The dash kit is designed to match the original look and feel of the vehicle dashboard. Installing an aftermarket radio can upgrade the sound quality and provide additional features the original factory radio could not offer but requires this dash kit to make it fit.
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GM Genuine Parts – GM Genuine Parts Multi-Purpose Relay, 19118886 (Part No.19118886)

GM Genuine Parts Multi-Purpose Relay, 19118886

from

$51.99
GM Genuine Parts Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays help connect or disconnect power to a vehicle accessory when it receives a low voltage signal from a switch. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
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Carquest Premium – Carquest Multi-Purpose Relay, RAA1256 (Part No.RAA1256)

Carquest Multi-Purpose Relay, RAA1256

from

$22.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
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Metra Electronics – Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHGM2 (Part No.AAPWHGM2)

Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHGM2

from

$18.99
Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHGM2. N
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Most Popular Radio Installation Kit for 2003 Chevrolet Avalanche 2500s

Enhance your 2003 Chevrolet Avalanche 2500 with this popular Radio Installation Kit we have in stock, for $31.99.

Metra Electronics – Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP555GM (Part No.AAP555GM)

Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP555GM

from

$31.99
Metra AAP555GM installation kit replaces the OEM radio with an aftermarket radio for General Motors 1995 to 2012 models. This kit replaces the OEM radio and allows an aftermarket radio to be installed in the factory radio locations. This stereo installation kit has been engineered to help you install a 2 inch tall (Single-DIN) or a 4 inch (Double DIN) aftermarket radio into the original vehicle dashboard, making radio replacement simple. The dash kit is designed to match the original look and feel of the vehicle dashboard. Installing an aftermarket radio can upgrade the sound quality and provide additional features the original factory radio could not offer but requires this dash kit to make it fit.
See More

Best-Selling 2003 Chevrolet Avalanche 2500 Radio Wiring Harnes

Upgrade your Avalanche 2500 with our best-selling Radio Wiring Harnes.

Metra Electronics – Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHGM2 (Part No.AAPWHGM2)

Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHGM2

from

$18.99
Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHGM2. N
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Top-Quality Speaker Relay for 2003 Chevrolet Avalanche 2500s

Choose a high-quality OEM or aftermarket Speaker Relay for Chevrolet Avalanche 2500s and enjoy top-notch performance from $22.99.

Carquest Premium – Carquest Multi-Purpose Relay, RAA1256 (Part No.RAA1256)

Carquest Multi-Purpose Relay, RAA1256

from

$22.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
See More

Our Top Pick for a 2003 Chevrolet Avalanche 2500 Radio Wiring Relay

Invest in a durable Radio Wiring Relay for your 2003 Chevrolet, knowing you’re getting trusted brands and expert craftsmanship.

GM Genuine Parts – GM Genuine Parts Multi-Purpose Relay, 19118886 (Part No.19118886)

GM Genuine Parts Multi-Purpose Relay, 19118886

from

$51.99
GM Genuine Parts Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays help connect or disconnect power to a vehicle accessory when it receives a low voltage signal from a switch. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
See More

Our Sound Absorber Clips for 2003 Chevrolet Avalanche 2500s

Make a smart move for your 2003 Chevrolet Avalanche 2500 with our Sound Absorber Clip for $1.99.

Dorman – Dorman Clip Nut – Wide Panel-No. 8 X 3/8 In, Panel Range .025 In – .125 In, 45406 (Part No.45406)

Dorman Clip Nut - Wide Panel-No. 8 X 3/8 In, Panel Range .025 In - .125 In, 45406

from

$1.99
Dorman offers a comprehensive line of Clip / Spring Nuts for a range of automotive applications. They are available for use with a large variety of screw sizes, throat depths, and panel ranges.
See More

FAQs for 2003 Chevrolet Avalanche 2500 Stereos

What are the best-selling Stereos for 2003 Chevrolet Avalanche 2500s?

What’s the price range for 2003 Chevrolet Avalanche 2500 Stereos?

The prices of Stereos for the 2003 Chevrolet Avalanche 2500 range from $1.99 up to $51.99 for the most premium parts.

What is the average price of a Stereo for a 2003 Chevrolet Avalanche 2500?

The average price for Stereos for the 2003 Chevrolet Avalanche 2500 is $25.59. Keep in mind the variety of part types within our Stereo category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Stereos for other Chevrolet Avalanche 2500 model years?

Yes, we carry Stereos for 3 model years of Chevrolet Avalanche 2500s between 2002 and 2006. The following model years are the most popular for Stereo purchases: 2006, 2005, 2004, and 2002.

Does Advance Auto Parts sell Stereos for any other 2003 Chevrolet models?

Yes. We stock Stereos for 28 other popular 2003 Chevrolet models. Some of the most popular are 2003 Tahoe Stereos, 2003 Impala Stereos, 2003 Silverado 1500 Stereos, 2003 Malibu Stereos, and 2003 Suburban 1500 Stereos.

What types of Stereos do you sell for my 2003 Chevrolet Avalanche 2500?

As of 8/2/26, these are some of the most in-demand types of Stereos for a 2003 Chevrolet Avalanche 2500:

Can I get help with 2003 Chevrolet Avalanche 2500 Stereo orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Stereos and more.

What is your return policy for Chevrolet Avalanche 2500 Stereos?

Advance Auto Parts keeps returns simple. For new Chevrolet Avalanche 2500 Stereos and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.