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2005 Audi A4 Quattro

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Overview 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 2005 Audi A4 Quattro

Find speakers to upgrade your sound and fit in the factory speaker location for your A4 Quattro.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

All car speakers

Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Center Dash Speaker(s)

Center Dash Speakers

Speakers for your center dash

Dash Corner

Dash Corner Speakers

Speakers for your dash corner

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

Rear Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

Rear Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

Rear Seat Side Panel Speakers

Rear Seat Side Panel Speakers

Speakers for your rear seat side panel.

Upper Front Door Speakers

Upper Front Door Speakers

Speakers for your upper front door.

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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.
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
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.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
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.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
PRO-X Series (32)
Reference Series (22)
V Series (14)
Kappa Series (13)
Machete Series (12)
Primus Series (12)
PRO Series (12)
Punch Series (11)
S Series (10)
ZXI Series (10)
Polk DB+ Series (9)
PRO-GM Series (9)
Stage Series (9)
HED Series (8)
SPL (8)
SPL Show Series (8)
XED Series (8)
NEO Series (7)
Cento Series (6)
Dieci Series (6)
EQ Series (6)
Mille Legend Series (6)
N-Series (6)
G-Series (TSG) (5)
Terminator Series (5)
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Apocalypse Series (4)
DMD Series (4)
MSNEO Series (4)
PNW Series (4)
Power Series (4)
Premium Series (4)
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MR Series (2)
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PRO-NS Series (2)
PRO-SM Series (2)
PS Series (2)
Punch Pro Series (2)
SA Series (2)
Thunder Dome Series (2)
VEGA Series (2)
VTEK Series (2)
BASSREV Series (1)
Black Hydra Series (1)
CF Series (1)
Colossus Classic Series (1)
CVPRO Series (1)
CVPX Series (1)
Diamond Elite Series (1)
Discus Series (1)
DR Series (1)
DS Series (1)
E-Series (1)
ECX Series (1)
EPIC PRO Series (1)
EQ NEO Series (1)
eXcelon Series (1)
Godfather Pro Series (1)
Hawk Series (1)
HED Pro Series (1)
Mille Pro Series (1)
MM Series (1)
NEO SPL Series (1)
Octagonal Series (1)
Polk Audio MM1 Series (1)
Pro Audio on Wheels Series (1)
Pro Audio Series (1)
PRO-CF Series (1)
PRO-ZT Series (1)
Punch P1 Series (1)
Road Thunder Extreme Series (1)
RS Series (1)
SQ Series (1)
Stadium (1)
Stage 3 Gen 2 Series (1)
Stallion Series (1)
Studio Series (1)
Symphony Series (1)
Tsunami Series (1)
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Sundown Audio VEX-6.5 (VEX-658)

200W RMS 6.5" VEX Series Pro-Audio Midrange 8-ohm Speaker (S-VEX658)

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Sundown Audio VEX-6.5 (VEX-658)

200W RMS 6.5" VEX Series Pro-Audio Midrange 8-ohm Speaker (S-VEX658)

• 200 watts RMS Each
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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List price $249.99
-24% $189.99

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Power Acoustik PR-804

700W Peak (350W RMS) 8" 2-Way Coaxial Pro Audio Midrange 4-ohm Speakers

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Power Acoustik PR-804

700W Peak (350W RMS) 8" 2-Way Coaxial Pro Audio Midrange 4-ohm Speakers

• 350 watts Peak Each, 175 watts RMS each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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$57.99 /pair

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Cerwin-Vega PH84

720W Peak (360W RMS) 8" Pro Series Full Range Coaxial 4-ohm Speakers

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Cerwin-Vega PH84

720W Peak (360W RMS) 8" Pro Series Full Range Coaxial 4-ohm Speakers

• 360 watts Peak Each, 180 watts RMS Each
• Horn Tweeter Loaded
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 103 dB

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List price $263.99
-17% $219.99 /pair

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MTX RTX8 (Sold Individually)

300W RMS 8" Road Thunder Extreme Series Pro Audio Mid-bass 4-ohm Speakers

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MTX RTX8 (Sold Individually)

300W RMS 8" Road Thunder Extreme Series Pro Audio Mid-bass 4-ohm Speakers

• 150 watts RMS Each
• Treated Paper cone material
• Large magnet attached to a stamped steel basket
• Impedance: 4 ohm
• Sensitivity: 97.7 dB

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List price $69.95
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Sundown Audio ECX 8 (ECX8)

60W RMS 8" ECX Series 2 Way Coaxial Pro Audio 4-ohm Speaker (S-ECX8)

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Sundown Audio ECX 8 (ECX8)

60W RMS 8" ECX Series 2 Way Coaxial Pro Audio 4-ohm Speaker (S-ECX8)

• 60 watts RMS Each
• Horn Tweeters
• Impedance:
• Sensitivity: 94 dB

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Hertz DCX130.3

160W Peak (80W RMS) 5.25" Dieci Series 2-way 4-ohm Coaxial Car Speakers

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Hertz DCX130.3

160W Peak (80W RMS) 5.25" Dieci Series 2-way 4-ohm Coaxial Car Speakers

• 80 watts Peak Each, 40 watts RMS Each
• 0.6" PEI (Polyetherimide) Dome tweeters with neodynium magnets
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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List price $150.00
-13% $129.99 /pair

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Hertz DSK 130.3

240W Peak (120W RMS) 5.25” Dieci Series 2-way 4-ohm Component Speaker System

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Hertz DSK 130.3

240W Peak (120W RMS) 5.25” Dieci Series 2-way 4-ohm Component Speaker System

• 120 watts Peak Each, 60 watts RMS Each
• 1" PEI (Polyetherimide) Dome-Cone tweeters with high-energy neodymium magnets
• Water-repellent Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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List price $230.00
-13% $199.99 /set

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Hertz MLK 700.3

400W Peak (200W RMS) 3" Mille Legend Series 4-ohm Component Speaker System

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Hertz MLK 700.3

400W Peak (200W RMS) 3" Mille Legend Series 4-ohm Component Speaker System

• 200 watts Peak Each, 100 watts RMS Each
• 1-7/16" Tetolon Dome tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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  • Center Dash
  • Dash Corner
List price $1765.00
-9% $1,599.99 /set

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Cerwin-Vega H52

240W Peak (140W RMS) 5.25" HED Series 2-Way Coaxial 4-ohm Speakers

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Cerwin-Vega H52

240W Peak (140W RMS) 5.25" HED Series 2-Way Coaxial 4-ohm Speakers

• 120 watts Peak Each, 70 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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  • Rear Seat Side Panel
List price $119.99
-17% $99.99 /pair

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Sundown Audio SA-8M 8" (SA8M)

500W Peak (260W RMS) 8" SA Series Mid-Bass 4-ohm Speakers (S-SA8M)

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Sundown Audio SA-8M 8" (SA8M)

500W Peak (260W RMS) 8" SA Series Mid-Bass 4-ohm Speakers (S-SA8M)

• 250 watts Peak Each, 130 watts RMS Each
• Woven Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 91.5 dB

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List price $479.99
-17% $399.99 /pair

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Cerwin-Vega HEDPS8 (Sold Individually)

600W Peak (200W RMS) 8" HED Pro Series 2-Way Pro Audio Coaxial 4-ohm Shallow Speaker

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Cerwin-Vega HEDPS8 (Sold Individually)

600W Peak (200W RMS) 8" HED Pro Series 2-Way Pro Audio Coaxial 4-ohm Shallow Speaker

• 600 watts Peak, 200 watts RMS
• Horn loaded tweeter
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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$69.99

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Massive Audio M8XL (Sold Individually)

500W Peak (250W RMS) 8” Pro-Audio Midrange 8-ohm Speaker

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Massive Audio M8XL (Sold Individually)

500W Peak (250W RMS) 8” Pro-Audio Midrange 8-ohm Speaker

• 500 watts Peak Each, 250 watts RMS Each
• Hardened Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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List price $89.99
-22% $69.99

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Kenwood KFC-1366S

520W Peak (60W RMS) 5.25" Sport Series 2 Way Coaxial 4-ohm Car Speakers

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Kenwood KFC-1366S

520W Peak (60W RMS) 5.25" Sport Series 2 Way Coaxial 4-ohm Car Speakers

• 260 watts Peak Each, 30 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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List price $80.00
Save 39%
-39% $49.00 /pair

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Kicker KSC5 (51KSC504)

300W Peak (150W RMS) 5.25" KS Series 2 Way Coaxial 4-ohm Speakers

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Kicker KSC5 (51KSC504)

300W Peak (150W RMS) 5.25" KS Series 2 Way Coaxial 4-ohm Speakers

• 150 watts Peak Each, 75 watts RMS Each
• 1/2" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Free Speaker Accessory at Checkout!
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List price $149.99
-13% $129.99 /pair

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Deaf Bonce Machete MLH-50

200W Peak (100W RMS) 5.2" Machete Series 4-ohm Full Range Car Speakers

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Deaf Bonce Machete MLH-50

200W Peak (100W RMS) 5.2" Machete Series 4-ohm Full Range Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90.4 dB

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Install kits available for most vehicles

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$29.90 /pair

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MTX Audio THUNDER52

180W Peak (90W RMS) 5.25" Thunder Series 2 Way Coaxial 4-ohm Speakers

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MTX Audio THUNDER52

180W Peak (90W RMS) 5.25" Thunder Series 2 Way Coaxial 4-ohm Speakers

• 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

Free Speaker Accessory at Checkout!
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$119.95 /pair

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MTX TERMINATOR5

140W Peak (70W RMS) 5.25" Terminator Series 2 Way Coaxial 4-ohm Speakers

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MTX TERMINATOR5

140W Peak (70W RMS) 5.25" Terminator Series 2 Way Coaxial 4-ohm Speakers

• 70 watts Peak Each, 35 watts RMS Each
• Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

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Install kits available for most vehicles

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List price $69.95
-14% $59.95 /pair

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DS18 PRO-X8MSE (Sold Individually)

550W Peak (275W RMS) 8" PRO-X Series 8-ohm Midrange Loudspeaker

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DS18 PRO-X8MSE (Sold Individually)

550W Peak (275W RMS) 8" PRO-X Series 8-ohm Midrange Loudspeaker

• 550 watts Peak Each, 275 watts RMS Each
• Glossy red steel basket
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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$67.95

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Sundown Audio LCMR-8 (LCMR88)

100W RMS 8" LCMR Series Pro Audio Midrange 8-ohm Speaker (S-LCMR88)

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Sundown Audio LCMR-8 (LCMR88)

100W RMS 8" LCMR Series Pro Audio Midrange 8-ohm Speaker (S-LCMR88)

• 100 watts RMS Each
• Impedance: 8 ohm
• Sensitivity: 94 dB

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List price $83.99
-17% $69.99

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DS18 PRO-X8.4M (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series Pro Audio Midrange 4-ohm Loudspeaker

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DS18 PRO-X8.4M (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series Pro Audio Midrange 4-ohm Loudspeaker

• 550 watts Peak, 275 watts RMS
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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$64.95

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    Q: Can I upgrade or change the Speakers in 2005 Audi A4 Quattro?

    A: Yes this page includes all the best Speakers that work in your A4 Quattro.

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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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