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2003 Audi A6

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Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Universal-Fit Audio for 2003 Audi A6

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

Better sound with your factory radio

Better sound with a factory radio

Love your factory look or can't replace the stereo? We got you covered.

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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.
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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.
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Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
Top-Mount Depth (Mounting Depth)
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
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.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
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".
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
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Cerwin-Vega CVP12D4

550W Peak (200W RMS) 12" CVP Series Dual 4-ohm Subwoofer

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Cerwin-Vega CVP12D4

550W Peak (200W RMS) 12" CVP Series Dual 4-ohm Subwoofer

• Peak Power: 550 watts
• RMS Power: 200 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Treated Double Stitched Foam Surround
• Mount depth: 5.94"
• Sensitivity: 86.7 dB

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$84.99

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Kicker CWRT674 (48CWRT674) (Like New (Open Box))

300W Peak (150W RMS) 6.75” CompRT Series Dual 4-ohm Shallow Subwoofer

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Kicker CWRT674 (48CWRT674) (Like New (Open Box))

300W Peak (150W RMS) 6.75” CompRT Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 dB

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• Peak Power: 300 watts
• RMS Power: 150 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 2-3/4"
• Sensitivity: 82.6 dB

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Kenwood KFC-W2542

1300W Peak (300W RMS) 10" Single 4-ohm Car Subwoofer

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Kenwood KFC-W2542

1300W Peak (300W RMS) 10" Single 4-ohm Car Subwoofer

• Peak Power: 1300 watts
• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Foam Surround
• Mount depth: 5-1/4"
• Sensitivity: 82 dB

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• Peak Power: 1300 watts
• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Foam Surround
• Mount depth: 5-1/4"
• Sensitivity: 82 dB

Diamond Audio DMD122SH

600W Peak (300W RMS) 12" DMD-SH Series Dual 2-ohm Shallow Car Subwoofer

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Diamond Audio DMD122SH

600W Peak (300W RMS) 12" DMD-SH Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 87.5 dB

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Diamond Audio DMD124SH

600W Peak (300W RMS) 12" DMD-SH Series Dual 4-ohm Shallow Car Subwoofer

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Diamond Audio DMD124SH

600W Peak (300W RMS) 12" DMD-SH Series Dual 4-ohm Shallow Car Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 86.8 dB

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American Bass HD 8" (HD-822)

800W Peak (400W RMS) 8" HD Series Dual 2-ohm Subwoofer

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American Bass HD 8" (HD-822)

800W Peak (400W RMS) 8" HD Series Dual 2-ohm Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 2 ohm
• Non-Pressed Paper Cone
• Foam Surround
• Mount depth: 6.14"
• Sensitivity: 82.2 dB

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List price $289.08
-37% $181.44

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Hifonics Elite 10" (HEW10D4S)

600W Peak (300W RMS) 10" Hifonics Elite Series Dual 4-ohm Shallow Subwoofer

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Hifonics Elite 10" (HEW10D4S)

600W Peak (300W RMS) 10" Hifonics Elite Series Dual 4-ohm Shallow Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Woven Fiber Cone
• UV Treated Foam Surround
• Mount depth: 2.99"
• Sensitivity: 83 dB

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List price $149.99
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Diamond Audio DMD122

400W Peak (200W RMS) 12" DMD Series Dual 2-ohm Car Subwoofer

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Diamond Audio DMD122

400W Peak (200W RMS) 12" DMD Series Dual 2-ohm Car Subwoofer

• Peak Power: 400 watts
• RMS Power: 200 watts
• Impedance: Dual 2 ohm
• Polypropylene cone
• Mount depth: 5.93"
• Sensitivity: 86 dB

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Sundown Audio U-15 v.2 D2 15" (U15V2D2)

4000W Peak (2000W RMS) 15" U Series Dual 2-ohm Car Subwoofer (SW-UV215D2)

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Sundown Audio U-15 v.2 D2 15" (U15V2D2)

4000W Peak (2000W RMS) 15" U Series Dual 2-ohm Car Subwoofer (SW-UV215D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Double-Stitched Surround
• Mount depth: 9"
• Sensitivity: 87.87 dB

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Sundown Audio Z-10 v.6 D1 10" (Z10V6D1)

6500W Peak (3250W RMS) 10" Z Series Dual 1-ohm Car Subwoofer (SW-ZV610D1)

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Sundown Audio Z-10 v.6 D1 10" (Z10V6D1)

6500W Peak (3250W RMS) 10" Z Series Dual 1-ohm Car Subwoofer (SW-ZV610D1)

• Peak Power: 6500 watts
• RMS Power: 3250 watts
• Impedance: Dual 1 ohm
• Treated Paper Cone
• Mega Roll V2 Surround
• Mount depth: 10.96"
• Sensitivity: 81.89 dB

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MTX 7512-22

1500W Peak (750W RMS) 12" 75 Series Dual 2-ohm Car Subwoofer

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MTX 7512-22

1500W Peak (750W RMS) 12" 75 Series Dual 2-ohm Car Subwoofer

• Peak Power: 1500 watts
• RMS Power: 750 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.437"
• Sensitivity: 85.34 dB

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Sundown Audio PSE-8

250W RMS 8" Dual 4-ohm Powersports Car Subwoofer

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Sundown Audio PSE-8

250W RMS 8" Dual 4-ohm Powersports Car Subwoofer

• RMS Power: 250 watts
• Impedance: Dual 4 ohm
• Mount depth: 4.75"
• Compatible with powersports applications

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Sundown Audio X-10 v.3 D2 10" (X10V3D2)

5000W Peak (2500W RMS) 10" X Series Dual 2-ohm Car Subwoofer (SW-XV310D2)

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Sundown Audio X-10 v.3 D2 10" (X10V3D2)

5000W Peak (2500W RMS) 10" X Series Dual 2-ohm Car Subwoofer (SW-XV310D2)

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Dual 2 ohm
• Pressed Paper Cone
• Mega Roll V2 Surround
• Mount depth: 9.4"
• Sensitivity: 82.5 dB

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List price $779.99
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Polk Audio MM842 SVC (MM842SVC)

900W Peak (300W RMS) 8" MM1 Series SIngle 4-ohm Car Subwoofer

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Polk Audio MM842 SVC (MM842SVC)

900W Peak (300W RMS) 8" MM1 Series SIngle 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Composite Polypropylene Cone - CPPC
• Santoprene Rubber surround
• Mount depth: 4"
• Sensitivity: 85 dB

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DS18 EXL-X12.4D

2500W Peak (1250W RMS) 12" EXL-X Series Dual 4-ohm Car Subwoofer

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DS18 EXL-X12.4D

2500W Peak (1250W RMS) 12" EXL-X Series Dual 4-ohm Car Subwoofer

• Peak Power: 2500 watts
• RMS Power: 1250 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 7"
• Sensitivity: 88 dB

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DS18 ZR8.4D

900W Peak (450W RMS) 8" ZR Series Dual 4-ohm Car Subwoofer

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DS18 ZR8.4D

900W Peak (450W RMS) 8" ZR Series Dual 4-ohm Car Subwoofer

• Peak Power: 900 watts
• RMS Power: 450 watts
• Non-Pressed Paper Cone
• Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 4.4"
• Sensitivity: 82 dB

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DC Audio Level 4 15M3D2 (M3LV415D2)

3000W Peak (1500W RMS) 15" Level 4 Series M3 Version Dual 2-ohm Car Subwoofer

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DC Audio Level 4 15M3D2 (M3LV415D2)

3000W Peak (1500W RMS) 15" Level 4 Series M3 Version Dual 2-ohm Car Subwoofer

• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Non-Pressed Paper Cone
• Multi-layered Polymer Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 8"
• Sensitivity: 87.4 dB

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• Peak Power: 3000 watts
• RMS Power: 1500 watts
• Non-Pressed Paper Cone
• Multi-layered Polymer Foam Surround
• Impedance: Dual 4 ohm
• Mount depth: 8"
• Sensitivity: 87.4 dB

American Bass Titanium 844 (TM-844)

600W Peak (300W RMS) 8" Titanium Series Dual 4-ohm Slim Subwoofer

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American Bass Titanium 844 (TM-844)

600W Peak (300W RMS) 8" Titanium Series Dual 4-ohm Slim Subwoofer

• Peak Power: 600 watts
• RMS Power: 300 watts
• Impedance: Dual 4 ohm
• Light Composite Fiber Cone
• EROM Rubber Surround
• Mount depth: 2.80"
• Sensitivity: 83.3 dB

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Universal Icon Universal – fits most vehicles.

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List price $183.48
-41% $108.06

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Sundown Audio NS v.6 D1 18" (NSV618D1)

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

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Sundown Audio NS v.6 D1 18" (NSV618D1)

7000W Peak (3500W RMS) 18" Nightshade Series Dual 1-ohm Car Subwoofer (SW-NSV618D1)

• Peak Power: 7000 watts
• RMS Power: 3500 watts
• Impedance: Dual 1 ohm
• Polypropylene Cone
• Mega Roll V2 Surround
• Sensitivity: 87.47 dB

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Universal Icon Universal – fits most vehicles.

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Massive Audio Hippo H122XR

6000W Peak (3000W RMS) 12" Hippo Series Dual 2-ohm Mega Subwoofer

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Massive Audio Hippo H122XR

6000W Peak (3000W RMS) 12" Hippo Series Dual 2-ohm Mega Subwoofer

• Peak Power: 6000 watts
• RMS Power: 3000 watts
• Impedance: Dual 2 ohm
• Kevlar Fiber-Enforced Non-Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 8.87"
• Sensitivity: 90.21 dB

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$699.99

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    FAQ for Universal-Fit Audio & Electronics in 2003 A6

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2003 Audi A6?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your A6.

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