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1981 Audi 4000

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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 1981 Audi 4000

Find speakers to upgrade your sound and fit in the factory speaker location for your 4000.  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.

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

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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.
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Alpine HDZ-65C with Sound Damping

600W Peak (200W RMS) 6.5” Status Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

HDZ65C_SDSK2 big
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Alpine HDZ-65C with Sound Damping

600W Peak (200W RMS) 6.5” Status Series 2-way Component Speaker System + NVX SDSK2 Sound Damping

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

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50
List price $1098.74
-33% $734.94

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

Hertz MPX 690.3 with Sound Damping

520W Peak (260W RMS) 6x9" Mille PRO Series 3-way 4-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

MPX6903_SDSK2 big
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Hertz MPX 690.3 with Sound Damping

520W Peak (260W RMS) 6x9" Mille PRO Series 3-way 4-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

• 260 watts Peak Each, 130 watts RMS Each
• 1" Tetolon Dome Tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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48
List price $748.74
-15% $634.98

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• 260 watts Peak Each, 130 watts RMS Each
• 1" Tetolon Dome Tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Hertz MPK1650.3 with Sound Damping

250W Peak (125W RMS) 6.5" Mille PRO Series 2-Way 3 Ohm Component speaker system + NVX SDSK2 Sound Damping

MPK16503_SDSK2 big
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Hertz MPK1650.3 with Sound Damping

250W Peak (125W RMS) 6.5" Mille PRO Series 2-Way 3 Ohm Component speaker system + NVX SDSK2 Sound Damping

• 125 Watts Max Each, 25 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

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49
List price $958.74
-15% $814.98

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• 125 Watts Max Each, 25 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

Hertz MPX 690.3 with Installation Accessories

520W Peak (260W RMS) 6x9" Mille PRO Series 3-way 4-ohm Coaxial Speakers + 6x9" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

MPX6903_ACC_KIT big
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Hertz MPX 690.3 with Installation Accessories

520W Peak (260W RMS) 6x9" Mille PRO Series 3-way 4-ohm Coaxial Speakers + 6x9" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 260 watts Peak Each, 130 watts RMS Each
• 1" Tetolon Dome Tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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270
List price $822.71
-19% $666.20

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• 260 watts Peak Each, 130 watts RMS Each
• 1" Tetolon Dome Tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

Alpine R2-S65 with Sound Damping

600W Peak (200W RMS) 6.5" R-Series 2-Way Coaxial Speakers with Magnesium Hard-Dome Tweeters + NVX SDSK2 Sound Damping

R2S65_SDSK2 big
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Alpine R2-S65 with Sound Damping

600W Peak (200W RMS) 6.5" R-Series 2-Way Coaxial Speakers with Magnesium Hard-Dome Tweeters + NVX SDSK2 Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $418.74
-33% $278.94

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• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

JBL Stadium 962M (JBLSPKSD962MAM) with Sound Damping

720W Peak (240W RMS) 6x9" Stadium Series 3-Way 3-Ohm Coaxial Car Speaker + NVX SDBSK2 Premium Sound Damping

STADIUM962M_SDBSK2 big
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JBL Stadium 962M (JBLSPKSD962MAM) with Sound Damping

720W Peak (240W RMS) 6x9" Stadium Series 3-Way 3-Ohm Coaxial Car Speaker + NVX SDBSK2 Premium Sound Damping

• 360 watts Peak Each, 120 watts RMS Each
• 3/4" Aluminum Dome tweeters
• Fiberglass cone material
• Impedance: 3 ohm
• Sensitivity: 94 dB

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List price $368.69
-23% $284.94

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• 360 watts Peak Each, 120 watts RMS Each
• 3/4" Aluminum Dome tweeters
• Fiberglass cone material
• Impedance: 3 ohm
• Sensitivity: 94 dB

Cerwin-Vega PH694 with Sound Damping

640W Peak (320W RMS) 6x9" PRO Series Full-Range Coaxial Car Speakers + NVX SDSK2 Sound Damping

PH694_SDSK2 big
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Cerwin-Vega PH694 with Sound Damping

640W Peak (320W RMS) 6x9" PRO Series Full-Range Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 320 watts Peak Each, 160 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 101 dB

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50
List price $258.73
-17% $214.98

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• 320 watts Peak Each, 160 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 101 dB

Hertz DSK165.3 with Sound Damping

160W Peak (80W RMS) 6.5" Dieci Series 2-Way Component Speaker system + NVX SDSK2 Sound Damping

DSK1653_SDSK2 big
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Hertz DSK165.3 with Sound Damping

160W Peak (80W RMS) 6.5" Dieci Series 2-Way Component Speaker system + NVX SDSK2 Sound Damping

• 80 Watts Max Each, 40 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

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List price $248.74
-14% $214.98

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• 80 Watts Max Each, 40 Watts RMS Each
• Water-repellent pressed paper cone material
• PEI Tweeter Dome
• 4 Ohm Impedance
• Sensitivity: 93 dB

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MTX Audio THUNDER61 with Sound Damping

180W RMS 6.5" Thunder Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

THUNDER61_SDBSK2 big
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MTX Audio THUNDER61 with Sound Damping

180W RMS 6.5" Thunder Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 90 watts RMS Each
• 1-3/8" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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List price $258.69
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• 90 watts RMS Each
• 1-3/8" Silk Soft Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

AudioControl PNW-4 with Installation Accessories

150W Peak (50W RMS) 4″ PNW Series High-fidelity 2-way 3-ohm Coaxial Speakers + 4" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

PNW4_ACC_KIT big
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AudioControl PNW-4 with Installation Accessories

150W Peak (50W RMS) 4″ PNW Series High-fidelity 2-way 3-ohm Coaxial Speakers + 4" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 75 watts Peak Each, 25 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm

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226
List price $260.71
-21% $206.06

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• 75 watts Peak Each, 25 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm

Rockford Fosgate Power T1692 with Sound Damping

400W Peak (200W RMS) 6x9" Power Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

09-T1692_SDBSK2 big
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Rockford Fosgate Power T1692 with Sound Damping

400W Peak (200W RMS) 6x9" Power Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters
• Polypropylene-Carbon Fiber Hybrid cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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71
List price $308.73
$304.98

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• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters
• Polypropylene-Carbon Fiber Hybrid cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

AudioControl PNW-4 with Sound Damping

150W Peak (50W RMS) 4″ PNW Series High-fidelity 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

PNW4_SDSK2 big
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AudioControl PNW-4 with Sound Damping

150W Peak (50W RMS) 4″ PNW Series High-fidelity 2-way 3-ohm Coaxial Speakers + NVX SDSK2 Sound Damping

• 75 watts Peak Each, 25 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm

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List price $207.74
-11% $183.99

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• 75 watts Peak Each, 25 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm

Kenwood eXcelon KFC-XP184C with Sound Damping

560W Peak (160W RMS) 6.5" eXcelon Series 2-way 4-ohm Component Car Speakers + NVX SDBSK2 Premium Sound Damping

KFCXP184C_SDBSK2 big
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Kenwood eXcelon KFC-XP184C with Sound Damping

560W Peak (160W RMS) 6.5" eXcelon Series 2-way 4-ohm Component Car Speakers + NVX SDBSK2 Premium Sound Damping

• 280 watts Peak Each, 80 watts RMS Each
• 1" Silk Soft Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.3 dB

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List price $308.74
-39% $189.49

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• 280 watts Peak Each, 80 watts RMS Each
• 1" Silk Soft Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86.3 dB

MB Quart PS1-216 with Sound Damping

240W Peak (120W RMS) 6.5" Premium Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

PS1216_SDBSK2 big
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MB Quart PS1-216 with Sound Damping

240W Peak (120W RMS) 6.5" Premium Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" Magnesium Dome tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 88.9 dB

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List price $258.73
-28% $185.61

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• 120 watts Peak Each, 60 watts RMS Each
• 1" Magnesium Dome tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 88.9 dB

AudioControl PNW-65CS2 with Sound Damping

250W Peak (150W RMS) 6.5″ PNW Series 2-way 3-ohm Component Speaker System + NVX SDSK2 Sound Damping

PNW65CS2_SDSK2 big
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AudioControl PNW-65CS2 with Sound Damping

250W Peak (150W RMS) 6.5″ PNW Series 2-way 3-ohm Component Speaker System + NVX SDSK2 Sound Damping

• 125 watts Peak Each, 75 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene-Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.8 dB

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List price $357.74
-7% $333.99

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• 125 watts Peak Each, 75 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene-Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.8 dB

Diamond Audio DES652 with Sound Damping

240W Peak (120W RMS) 6.5" Elite Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DES652_SDSK2 big
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Diamond Audio DES652 with Sound Damping

240W Peak (120W RMS) 6.5" Elite Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome Tweeters
• Composite foam core carbon fiber cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

MB QUART PK1-116 with Sound Damping

220W Peak (110W RMS) 6.5" Premium Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

PK1116_SDBSK2 big
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MB QUART PK1-116 with Sound Damping

220W Peak (110W RMS) 6.5" Premium Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome tweeters with tunable waveguide housing
• Curvilinear Lightweight Aerated Pop Paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88.5 dB

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• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome tweeters with tunable waveguide housing
• Curvilinear Lightweight Aerated Pop Paper with Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88.5 dB

Alpine S2-S65 with Sound Damping

480W Peak (160W RMS) 6.5" S-Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

S2S65_SDSK2 big
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Alpine S2-S65 with Sound Damping

480W Peak (160W RMS) 6.5" S-Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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List price $198.74
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• 240 watts Peak Each, 80 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Diamond Audio DMD653 with Sound Damping

200W Peak (100W RMS) 6.5" DMD Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DMD653_SDSK2 big
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Diamond Audio DMD653 with Sound Damping

200W Peak (100W RMS) 6.5" DMD Series 3-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 100 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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List price $168.73
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• 100 watts Peak Each, 50 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Diamond Audio MS69CX with Sound Damping

1000W Peak (250W RMS) 6"x9" MS Series 2-way Coaxial Speakers + NVX SDSK2 Sound Damping

MS69CX_SDSK2 big
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Diamond Audio MS69CX with Sound Damping

1000W Peak (250W RMS) 6"x9" MS Series 2-way Coaxial Speakers + NVX SDSK2 Sound Damping

• 500 watts Peak Each, 125 watts RMS Each
• 1" Titanium Dome Tweeters
• Thermal Molded Waterproof Kevlar cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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• 500 watts Peak Each, 125 watts RMS Each
• 1" Titanium Dome Tweeters
• Thermal Molded Waterproof Kevlar cone material
• Impedance: 4 ohm
• Sensitivity: 93.5 dB

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    A: Yes this page includes all the best Speakers that work in your 4000.

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    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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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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