2003 Mercury Mountaineer Stereos

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Keep Your 2003 Mercury Mountaineer in Top Shape with Quality Stereos

Whether you’re repairing or upgrading your Stereo, using high-quality parts is key to keeping your 2003 Mercury Mountaineer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Radio Wiring Harness, Radio Installation Kits, and Radio Connectors. 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.

Top-Rated Stereos from Trusted Brands

Looking for a reliable Stereo? We’ve got you covered with options from brands you know and trust like Metra Electronics. For example, Metra Electronics Stereos start at just $14.99 with an average 4.2 star rating. With over 10 reviews and a solid 3.3 star average, you can shop with confidence knowing other Mercury Mountaineer owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 Mercury Mountaineer Stereo at Advance Auto Parts is around $23.47, with a range that starts at $7.45 and goes up to $51.99. With 5 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP586FT, Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHFD3, and Carquest Multi-Use Connector, PTC1865 start at just $18.99 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. At Advance Auto Parts, we’re here to help you keep your 2003 Mercury Mountaineer in peak condition, inside and out.

Essential 2003 Mercury Mountaineer Stereos

Metra Electronics – Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP586FT (Part No.AAP586FT)

Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP586FT

from

$26.99
Metra AAP586FT radio installation kit allows you to replace the OEM radio with an aftermarket radio for Ford/Lincoln/Mazda/ Mercury 1995-2011 models. DIN Radio Provision with Pocket. 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) 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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Metra Electronics – Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHFD4 (Part No.AAPWHFD4)

Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHFD4

from

$18.99
Metra AAPWHFD4 Aftermarket Radio Wire Harness for non-amplified Ford/Lincoln/Mercury 2003-up Models. Install a new car radio faster with this wiring harness that plugs right into the vehicle’s connectors, allowing you to hook up the radio into the vehicle’s electrical system. On one side, the wiring harness is color-coded with wires that you’ll connect or solder into the aftermarket radio/receiver. The other side has a vehicle-specific adapter that connects directly into the original radio connectors for a quicker installation without having to cut each of the wires. Keep in mind that you may need additional parts to complete your installation, including a dash kit, antenna adapter, and, depending on your vehicle, a special interface adapter to retain audio controls on your steering wheel or other important vehicle functions like navigation, video, and more. Look up your vehicle for more information. The AAPWHFD4 is a convenient and easy-to-use way to connect an aftermarket radio to a factory wiring harness. It eliminates the need to cut and splice wires, and it ensures that the aftermarket radio is properly connected to the vehicle’s electrical system. The AAPWHFD4 is a popular choice for car enthusiasts who are replacing the factory radio in their vehicle. It is a high-quality product that is easy to use and provides reliable performance.
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Metra Electronics – Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHFD3 (Part No.AAPWHFD3)

Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHFD3

from

$18.99
The Metra Electronics OEM Car Stereo Wire Harness AAPWHFD3 is a wire harness adapter that is used to connect an aftermarket radio to the factory wiring harness in 1998-2011 Ford, Lincoln, and Mercury vehicles. It provides power to the aftermarket radio, allows speaker connection, fits into the factory plug, and is used when replacing the OEM radio in non-amplified models. The AAPWHFD3 is a convenient and easy-to-use way to connect an aftermarket radio to a factory wiring harness. It eliminates the need to cut and splice wires, and it ensures that the aftermarket radio is properly connected to the vehicle’s electrical system. The AAPWHFD3 is a popular choice for car enthusiasts who are replacing the factory radio in their vehicle. It is a high-quality product that is easy to use and provides reliable performance. If you are considering replacing the factory radio in your 1998-2011 Ford, Lincoln, or Mercury vehicle, be sure to check out the Metra Electronics OEM Car Stereo Wire Harness AAPWHFD3. It is a great way to ensure that the aftermarket radio is properly connected to the vehicle’s electrical system.
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Metra Electronics – Metra Electronics Ford Car Stereo Wire Harness: Aftermarket Harness, CF-WHFD3 (Part No.CF-WHFD3)

Metra Electronics Ford Car Stereo Wire Harness: Aftermarket Harness, CF-WHFD3

from

$14.99
Metra CF-WHFD3 radio wire harness used when replacing the OEM radio with an Aftermarket radio. Harness wires up to the aftermarket radio and directly plugs into the Oem radio harness for a quick and easy installation solution. EAI color coded for easy match up to aftermarket radio harness. Harness fits FORD 1998-up models.
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Metra Electronics – Metra Electronics Car Stereo Wire Harness: Ford/Lincoln/Mercury 1998€“2012, 70-5521 (Part No.70-5521)

Metra Electronics Car Stereo Wire Harness: Ford/Lincoln/Mercury 1998€“2012, 70-5521

from

$54.99
Metra 70-5521 Radio Wire Harness and sub harness Fits select Ford/Lincoln/Mercury models 1998-2012. Install a new car radio faster with this wiring harness that plugs right into the vehicle’s connectors, allowing you to hook up the radio into the vehicle’s electrical system. On one side, the wiring harness is color-coded with wires that you’ll connect or solder into the aftermarket radio/receiver. The other side has a vehicle-specific adapter that connects directly into the original radio connectors for a quicker installation without having to cut each of the wires. Keep in mind that you may need additional parts to complete your installation, including a dash kit, antenna adapter, and, depending on your vehicle, a special interface adapter to retain audio controls on your steering wheel or other important vehicle functions like navigation, video, and more. Look up your vehicle for more information.
See More

Metra Electronics – Metra Electronics Car Stereo Wire Harness: GM Aftermarket Harness, Non-Amplified, CF-WHFD4 (Part No.CF-WHFD4)

Metra Electronics Car Stereo Wire Harness: GM Aftermarket Harness, Non-Amplified, CF-WHFD4

from

$14.99
Metra CF-WHFD4 radio wire harness used when replacing the OEM radio with an Aftermarket radio. Harness wires up to the aftermarket radio and directly plugs into the Oem radio harness for a quick and easy installation solution. EAI color coded for easy match up to aftermarket radio harness. Harness fits FORD 2003-up models.
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Carquest Premium – Carquest Multi-Use Connector, PTC1865 (Part No.PTC1865)

Carquest Multi-Use Connector, PTC1865

from

$51.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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Most Popular Radio Wiring Harness for 2003 Mercury Mountaineers

Enhance your 2003 Mercury Mountaineer with one of the 3 Radio Wiring Harness we have in stock, starting at just $14.99.

Metra Electronics – Metra Electronics Ford Car Stereo Wire Harness: Aftermarket Harness, CF-WHFD3 (Part No.CF-WHFD3)

Metra Electronics Ford Car Stereo Wire Harness: Aftermarket Harness, CF-WHFD3

from

$14.99
Metra CF-WHFD3 radio wire harness used when replacing the OEM radio with an Aftermarket radio. Harness wires up to the aftermarket radio and directly plugs into the Oem radio harness for a quick and easy installation solution. EAI color coded for easy match up to aftermarket radio harness. Harness fits FORD 1998-up models.
See More

Metra Electronics – Metra Electronics Car Stereo Wire Harness: GM Aftermarket Harness, Non-Amplified, CF-WHFD4 (Part No.CF-WHFD4)

Metra Electronics Car Stereo Wire Harness: GM Aftermarket Harness, Non-Amplified, CF-WHFD4

from

$14.99
Metra CF-WHFD4 radio wire harness used when replacing the OEM radio with an Aftermarket radio. Harness wires up to the aftermarket radio and directly plugs into the Oem radio harness for a quick and easy installation solution. EAI color coded for easy match up to aftermarket radio harness. Harness fits FORD 2003-up models.
See More

Metra Electronics – Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHFD3 (Part No.AAPWHFD3)

Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHFD3

from

$18.99
The Metra Electronics OEM Car Stereo Wire Harness AAPWHFD3 is a wire harness adapter that is used to connect an aftermarket radio to the factory wiring harness in 1998-2011 Ford, Lincoln, and Mercury vehicles. It provides power to the aftermarket radio, allows speaker connection, fits into the factory plug, and is used when replacing the OEM radio in non-amplified models. The AAPWHFD3 is a convenient and easy-to-use way to connect an aftermarket radio to a factory wiring harness. It eliminates the need to cut and splice wires, and it ensures that the aftermarket radio is properly connected to the vehicle’s electrical system. The AAPWHFD3 is a popular choice for car enthusiasts who are replacing the factory radio in their vehicle. It is a high-quality product that is easy to use and provides reliable performance. If you are considering replacing the factory radio in your 1998-2011 Ford, Lincoln, or Mercury vehicle, be sure to check out the Metra Electronics OEM Car Stereo Wire Harness AAPWHFD3. It is a great way to ensure that the aftermarket radio is properly connected to the vehicle’s electrical system.
See More

Best-Selling 2003 Mercury Mountaineer Radio Installation Kit

Upgrade your Mountaineer with our best-selling Radio Installation Kit.

Metra Electronics – Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP586FT (Part No.AAP586FT)

Metra Electronics Radio Installation Dash Kit: Radio DIY Install Kit, Single Din, Black, AAP586FT

from

$26.99
Metra AAP586FT radio installation kit allows you to replace the OEM radio with an aftermarket radio for Ford/Lincoln/Mazda/ Mercury 1995-2011 models. DIN Radio Provision with Pocket. 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) 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

Top-Quality Radio Connectors for 2003 Mercury Mountaineers

Choose a high-quality OEM or aftermarket Radio Connector for Mercury Mountaineers and enjoy top-notch performance from $51.99.

Carquest Premium – Carquest Multi-Use Connector, PTC1865 (Part No.PTC1865)

Carquest Multi-Use Connector, PTC1865

from

$51.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
See More

Top-Rated Stereo Brands For Your 2003 Mercury Mountaineer

When it comes to finding the perfect Stereo for your 2003 Mercury Mountaineer, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Stereo brands including Metra Electronics, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $14.99. Purchasing a Stereo from us here at Advance Auto Parts is a smart move for both you and your 2003 Mercury Mountaineer, providing peace of mind with parts that meet or exceed OEM standards.

Popular Metra Electronics 2003 Mercury Mountaineer Stereos

If you’re looking for a top-quality Stereo for your 2003 Mercury Mountaineer, Advance Auto Parts has exactly what you need with our selection of Metra Electronics Stereos. We have 1 Metra Electronics Stereos in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.99, you’ll find the perfect Stereo for your needs and budget. Metra Electronics Stereos for the 2003 Mercury Mountaineer come highly rated, with over 4 customer reviews and an impressive average rating of 4.2 stars. Choosing a Metra Electronics Stereo from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Metra Electronics Ford Car Stereo Wire Harness: Aftermarket Harness, CF-WHFD3
from $7.45
(4)
Metra Electronics Ford Car Stereo Wire Harness: Aftermarket Harness, CF-WHFD3
“Perfect fit for my E450 Super duty. The wires are labeled and also has labeling in package. Staff was very friendly and looked up the adapter that I”

FAQs for 2003 Mercury Mountaineer Stereos

What are the best-selling Stereos for 2003 Mercury Mountaineers?

Out of 5 Stereos that fit 2003 Mercury Mountaineers, the following parts are the top sellers:

What’s the price range for 2003 Mercury Mountaineer Stereos?

The prices of Stereos for the 2003 Mercury Mountaineer range from $7.45 up to $51.99 for the most premium parts.

What is the average price of a Stereo for a 2003 Mercury Mountaineer?

The average price for Stereos for the 2003 Mercury Mountaineer is $23.47. 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 Mercury Mountaineer model years?

Yes, we carry Stereos for 12 model years of Mercury Mountaineers between 1997 and 2010. The following model years are the most popular for Stereo purchases: 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2002, and 2001.

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

Yes. We stock Stereos for 1 other popular 2003 Mercury models. Some of the most popular are 2003 Grand Marquis Stereos and 2003 Marauder Stereos.

What are the top-rated Stereos that fit the 2003 Mercury Mountaineer?

The one 2003 Mercury Mountaineer Stereo we have in stock is the Metra Electronics Ford Car Stereo Wire Harness: Aftermarket Harness, CF-WHFD3. It is rated 4.5 stars and costs $14.99.

What types of Stereos do you sell for my 2003 Mercury Mountaineer?

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

Can I get help with 2003 Mercury Mountaineer Stereo orders?

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

What is your return policy for Mercury Mountaineer Stereos?

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