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2011 Mazda 3

Change vehicle | Remove vehicle
Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Independance Day Sale

Find car audio that fits your 2011 Mazda 3

Find car audio, stereo and speakers guaranteed to fit your 2011 Mazda 3. As an added bonus, most stereos include a free or discounted dash kit, wiring harness and antenna adapter and many speakers included discounted adapters and quick-disconnect harnesses to avoid cutting wires.

Mazda 3 Stereos & Install Accessories

Stereos & Install Accessories

Upgrade your OEM factory radio with an aftermarket stereo receiver that has all the latest technologies.

Various Car Speakers that Fit

Speakers & Speaker Installation

Shop for vehicle car speakers that fit all of the locations in your 2011 3.

Subwoofer that fits 2011 Mazda 3

Subwoofers and Boxes

Find the best sub for your 2011 3 and you'll add bass and fuller sound to your Mazda.

Amplifiers and Amp Accessories

Amplifier and Amp Accessories

Amplifiers and amp accessories for your 3 like bypass harnesses, DSPs and line output converters needed to add an amp.

Digital Sound Processors

Digital Sound Processors

Add a DSP to bring advanced sound controls and get the most from your 3 stereo.

Audio installation and accessories

Audio Installation & Accessories

Install car audio in your 2011 3 and make sure to get the parts and accessories that fit.

Backup Rearview Cameras for 2011 Mazda 3

Backup Cameras

Park with ease and drive safer with a back-up camera for your 2011 3.

Independance Day Sale

Independance Day Sale

Independance Day Sale! Huge Discounts up to 40% off Car / Marine / ATV Audio

72-5602 main

Metra 72-5602 Speaker Harness for 2009-2024 Ford, Mazda, Lincoln

Install New Front Kick Panel Speakers in select 2009-2024 vehicles from Ford, Mazda, Lincoln

44
-20.01%

$11.99

List price $14.99

Add to cart
40-HD10 main

Metra 40-HD10 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2005-2024 vehicles from Honda, Mazda, Acura

29
-15.40%

$10.99

List price $12.99

Add to cart
82-5600 main

Metra 82-5600

5-1/4" / 6-1/2" Speaker to 6" x 8" Adapters for select 1981-2017 vehicles from Mercury, Mazda, Lincoln

3
-11.12%

$15.99

List price $17.99

Add to cart
70-7903 main

Metra 70-7903 Wiring Harness

Install a new car stereo in select 2001-2021 vehicles from Mazda, Fiat

18

$8.99

Add to cart
MazK849 main

American International MazK849

Single DIN or Double DIN Stereo Dash Kit for select 2010-2013 3

2
-67.81%

$18.99

List price $59.00

Add to cart
HO6 main

PAC HO6

Install a New Car Stereo and Retain the Factory Antenna in select 2003-2016 vehicles from Honda, Mazda, Acura

-70.83%

$7.00

List price $24.00

Add to cart
99-7514B main

Metra 99-7514B Dash Kit

Install a new Single-DIN or Double-DIN car stereo in select 2010-2013 3 (Matte Black)

1
-52.64%

$26.99

List price $56.99

Add to cart
Reference 5030cx main

Infinity Reference 5030cx (REF5030CX)

390W Peak (130W RMS) 5.25" Reference Series 2-Way 3-ohm Component Speaker System

2
-60.01%

$99.95

List price $249.95

Add to cart
Limited time!
DMX809S main

Kenwood eXcelon DMX809S

6.8” Double DIN Digital Multimedia Touchscreen Bluetooth Receiver with Wireless Apple CarPlay and Android Auto (SiriusXM Ready)

11
-37.63%

$499.00

List price $800.00

Add to cart
Limited time!
KDC-X305 main

Kenwood eXcelon KDC-X305

Single DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

28
-29.17%

$170.00

List price $240.00

Add to cart

Shop all 2011 Mazda 3 Car Audio, Speakers, & Electronics

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Heise HE-RBM250

Mount a Heise Light Bar to a 2.5" Roll Bar

HE-RBM250 big
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Heise HE-RBM250

Mount a Heise Light Bar to a 2.5" Roll Bar

• Black-plated Aluminum
• Rubber Gasket to Protect Roll-bar

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Universal – fits most vehicles.
Shop similar products or Update vehicle
List price $53.99
-11% $47.99

In stock

Only 2 Left!

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• Black-plated Aluminum
• Rubber Gasket to Protect Roll-bar

Heise HE-RBM3

Mount a Heise Light Bar to a 3" Roll Bar

HE-RBM3 big
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Heise HE-RBM3

Mount a Heise Light Bar to a 3" Roll Bar

• Designed for Heise Light Bars
• Black plated aluminum
• Includes protective rubber gaskets and tools

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Universal – fits most vehicles.
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List price $51.99
-12% $45.99

In stock.

Add to Cart

• Designed for Heise Light Bars
• Black plated aluminum
• Includes protective rubber gaskets and tools

Heise HE-RBM75

Mount a Heise Light Bar to a .75" Roll Bar

HE-RBM75 big
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Heise HE-RBM75

Mount a Heise Light Bar to a .75" Roll Bar

• Black-plated Aluminum
• Rubber Gasket to Protect Roll-bar

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Universal Icon
Universal – fits most vehicles.
Shop similar products or Update vehicle
List price $46.99
-11% $41.99

Available

Ships in 10-14 days

Add to Cart

• Black-plated Aluminum
• Rubber Gasket to Protect Roll-bar

Heise HE-RBM1

Mount a Heise Light Bar to a 1" Roll Bar

HE-RBM1 big
Go to item page Right Arrow Icon of Right Arrow

Heise HE-RBM1

Mount a Heise Light Bar to a 1" Roll Bar

• Black-plated Aluminum
• Rubber Gasket to Protect Roll-bar

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Universal Icon
Universal – fits most vehicles.
Shop similar products or Update vehicle
List price $51.99
-12% $45.99

In stock.

Add to Cart

• Black-plated Aluminum
• Rubber Gasket to Protect Roll-bar

Heise HE-RBM2

Mount a Heise Light Bar to a 2" Roll Bar

HE-RBM2 big
Go to item page Right Arrow Icon of Right Arrow

Heise HE-RBM2

Mount a Heise Light Bar to a 2" Roll Bar

• Black-plated Aluminum
• Rubber Gasket to Protect Roll-bar

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Universal Icon
Universal – fits most vehicles.
Shop similar products or Update vehicle
List price $52.99
-11% $46.99

In stock

Only 2 Left!

Add to Cart

• Black-plated Aluminum
• Rubber Gasket to Protect Roll-bar

Heise HE-RSLBK

Replacement Mounting End Brackets and Hardware for Slimline Lightbars

HE-RSLBK big
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Heise HE-RSLBK

Replacement Mounting End Brackets and Hardware for Slimline Lightbars

• Replacement mounting end brackets and hardware
• Designed for Heise Slimline series lightbars

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Universal Icon
Universal – fits most vehicles.
Shop similar products or Update vehicle
List price $39.99
-10% $35.99

In stock.

Add to Cart

• Replacement mounting end brackets and hardware
• Designed for Heise Slimline series lightbars

 
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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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