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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

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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

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70-7903 main

Metra 70-7903 Wiring Harness

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

18

$8.99

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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

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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
KDC-X305 main

Kenwood eXcelon KDC-X305

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

28
-17.08%

$199.00

List price $240.00

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

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

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Wiring to add an amp to factory stereo (1)
Price Range
Product Fitment Type
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.
Total RMS Per Pair/Set
Total PEAK Per Pair/Set
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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2021–Current Ford Bronco Alpine Component Status Plug & Play Speaker Bundle

600W Peak (200W RMS) 6.5” Status Series Hi-Res 2-Way Component 4-ohm Speaker System

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2021–Current Ford Bronco Alpine Component Status Plug & Play Speaker Bundle

600W Peak (200W RMS) 6.5” Status Series Hi-Res 2-Way Component 4-ohm Speaker System

• 300 watts Peak Each, 100 watts RMS Each
• Hi-Res Audio Certified
• 1-1/4" Carbon Composite Cone Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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3
List price $1870.00
-33% $1,247.90

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• 300 watts Peak Each, 100 watts RMS Each
• Hi-Res Audio Certified
• 1-1/4" Carbon Composite Cone Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Diamond Audio MSMP692LK24

1000W Peak (500W RMS) 6x9" 2-Way Coaxial Cut In-Speaker Lid Kit for

MSMP692LK24 big
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Diamond Audio MSMP692LK24

1000W Peak (500W RMS) 6x9" 2-Way Coaxial Cut In-Speaker Lid Kit for

• 500 watts Peak Each, 250 watts RMS Each
• Horn Tweeter
• Impedance: 4 ohm
• Sensitivity: 101 dB

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• 500 watts Peak Each, 250 watts RMS Each
• Horn Tweeter
• Impedance: 4 ohm
• Sensitivity: 101 dB

 
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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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