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Earthquake Sound T65

800W Peak 6.5" TNT Series 2-Way Coaxial 4-ohm Car Speakers

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800W Peak 6.5" TNT Series 2-Way Coaxial 4-ohm Car Speakers

• 400 watts Peak Each
• 1.18" Mylar Dome Tweeters
• Poly-Injection cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

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Fits the following location in your 90
  • Rear Deck Corner
$135.99 /pair

In stock.

Limited time!

JBL Arena X 36Be

400W Peak (200W RMS) 6.5" Arena X Series 3-way Component 4-ohm Speakers

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400W Peak (200W RMS) 6.5" Arena X Series 3-way Component 4-ohm Speakers

• 200 watts Peak Each, 100 watts RMS Each
• 1" Beryllium Edge Driven Dome tweeters
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Fits the following location in your 90
  • Rear Deck Corner
List price $5499.95
-9% $4,999.95 /set

Available

Ships in 10-14 days

American Bass STALLION-6.5-MR (Sold Individually)

700W Peak (350W RMS) 6.5" Stallion Series Midrange 4-ohm Speaker

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700W Peak (350W RMS) 6.5" Stallion Series Midrange 4-ohm Speaker

• 700 watts Peak Each, 350 watts RMS Each
• Impedance: 4 ohm
• Sensitivity: 98.5 dB

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Install kits available for most vehicles

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Fits the following location in your 90
  • Rear Deck Corner
List price $183.48
-38% $114.24

In stock.

Massive Audio HNX6

560W Peak (240W RMS) 6.5" HNX Series 2 Way Coaxial 4-ohm Pro Audio Speakers

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560W Peak (240W RMS) 6.5" HNX Series 2 Way Coaxial 4-ohm Pro Audio Speakers

• 280 watts Peak Each, 120 watts RMS Each
• Fiber Paper cone material
• Impedance: 4 ohm
• Sensitivity: 98 dB
• Water-repellent materials

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Fits the following location in your 90
  • Rear Deck Corner
List price $229.98
-13% $199.99 /pair

Available

Ships in 10-14 days

Limited time!

Rockford Fosgate Power T4 T4652-S

600W Peak (300W RMS) 6.5" Power Series 2 Way Component 4-ohm Speaker System

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600W Peak (300W RMS) 6.5" Power Series 2 Way Component 4-ohm Speaker System

• 300 watts Peak Each, 150 watts RMS Each
• 1" Liquid Crystal Polymer (LCP) Dome tweeters
• Liquid Crystal Polymer (LCP) cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
$1,399.99

Available

Ships in 10-14 days

Used from: $1,189.99
Limited time!

AudioControl PNW-4

150W Peak (100W RMS) 4″ PNW Series 2 Way Coaxial 3-ohm Speakers

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150W Peak (100W RMS) 4″ PNW Series 2 Way Coaxial 3-ohm Speakers

• 75 watts Peak Each, 50 watts RMS Each
• Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 84.38 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your 90
  • Dash Corner
  • Front Door
1
List price $189.00
-11% $169.00 /pair

In stock

Sundown Audio VEX-6.5 (VEX-654)

200W RMS 6.5" VEX Series Pro-Audio Midrange 4-ohm Speaker (S-VEX654)

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200W RMS 6.5" VEX Series Pro-Audio Midrange 4-ohm Speaker (S-VEX654)

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

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
List price $249.99
-24% $189.99

Available

Ships in 10-14 days

Cerwin-Vega HEDPS65 (Sold Individually)

360W Peak (120W RMS) 6.5" HED Pro Series 2-Way Pro Audio Coaxial 4-ohm Shallow Speaker

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360W Peak (120W RMS) 6.5" HED Pro Series 2-Way Pro Audio Coaxial 4-ohm Shallow Speaker

• 360 watts Peak Each, 120 watts RMS Each
• Horn loaded tweeter
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
$69.99

In stock

Limited time!

Diamond Audio HX653DI

300W RMS 6.5" HEX Diamante Italia Series 3-Way 3.3-ohm Component Speaker System

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300W RMS 6.5" HEX Diamante Italia Series 3-Way 3.3-ohm Component Speaker System

• 150 watts RMS Each
• 1" Silk Dome Tweeters
• Bronze Fiberglass cone material
• Impedance: 3.3 ohm
• Sensitivity: 90 dB

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found car based on your search
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  • Rear Deck Corner
$1,319.99 /set

In stock

Only 1 Left!

DS18 PRO-NS6.4

300W Peak (150W RMS) 6.5" PRO-NS Series 4-ohm Shallow-mount Mid-range Speakers

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300W Peak (150W RMS) 6.5" PRO-NS Series 4-ohm Shallow-mount Mid-range Speakers

• 300 watts Peak Each, 150 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
$71.95

In stock.

Massive Audio MA6 (Sold Individually)

280W Peak (140W RMS) 6.5" MA Series 8-ohm Pro-Audio Midrange Car Speaker

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280W Peak (140W RMS) 6.5" MA Series 8-ohm Pro-Audio Midrange Car Speaker

• 280 watts Peak Each, 140 watts RMS Each
• Hardened Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96 dB

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  • Rear Deck Corner
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List price $49.49
-29% $34.99

Available

Ships in 10-14 days

Limited time!

Hertz MLK 1650.3 Legend

600W Peak (300W RMS) 6.5" Mille Legend Series 2-way 4-ohm Component Speaker System

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600W Peak (300W RMS) 6.5" Mille Legend Series 2-way 4-ohm Component Speaker System

• 300 watts Peak Each, 150 watts RMS Each
• 1" Tetolon Dome tweeters
• Pressed Pulp Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
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List price $2115.00
-10% $1,899.99 /set

In stock

Only 2 Left!

American Bass GF-6.5-MR (Sold Individually)

600W Peak (300W RMS) 6.5" Godfather Series Midrange 4-ohm Speaker

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600W Peak (300W RMS) 6.5" Godfather Series Midrange 4-ohm Speaker

• 600 watts Peak, 300 watts RMS
• Impedance: 4 ohm
• Sensitivity: 103 dB
• Steel stamped basket

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Install kits available for most vehicles

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Fits the following location in your 90
  • Rear Deck Corner
List price $72.58
-29% $51.73

In stock.

• 600 watts Peak, 300 watts RMS
• Impedance: 4 ohm
• Sensitivity: 103 dB
• Steel stamped basket

DS18 PRO-CF6.2SLN (Sold Individually)

300W Peak (150W RMS) 6.5" Pro Audio Midrange 2-ohm Shallow Motorcycle and Powersports Loudspeaker

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300W Peak (150W RMS) 6.5" Pro Audio Midrange 2-ohm Shallow Motorcycle and Powersports Loudspeaker

• 300 watts Peak, 150 watts RMS
• Water Resistant Carbon Fiber
• Impedance: 2 ohm
• Sensitivity: 93 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
$174.95

In stock

Only 2 Left!

• 300 watts Peak, 150 watts RMS
• Water Resistant Carbon Fiber
• Impedance: 2 ohm
• Sensitivity: 93 dB

Massive Audio M6XL (Sold Individually)

400W Peak (200W RMS) 6.5" Pro-Audio Midrange 8-ohm Speaker

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400W Peak (200W RMS) 6.5" Pro-Audio Midrange 8-ohm Speaker

• 400 watts Peak Each, 200 watts RMS Each
• Hardened Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
List price $74.99
-33% $49.99

Available

Ships in 10-14 days

Used from: $41.99

DS18 PRO-X6M (Sold Individually)

450W Peak (225W RMS) 6.5” PRO-X Series Pro Audio Mid-Range 8-ohm Loudspeaker

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450W Peak (225W RMS) 6.5” PRO-X Series Pro Audio Mid-Range 8-ohm Loudspeaker

• 450 watts Peak Each, 225 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
$45.95

In stock

Limited time!

Massive Audio MX65V2

500W Peak (120W RMS) 6.5" MX Series 3-Way Coaxial 4-ohm Speakers

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500W Peak (120W RMS) 6.5" MX Series 3-Way Coaxial 4-ohm Speakers

• 250 watts Peak Each, 60 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Custom Laminated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
List price $62.49
-20% $49.99 /pair

Available

Ships in 10-14 days

Limited time!

DS18 DXQ6.5CX

600W Peak (300W RMS) 6.5" DXQ Series 2-Way Coaxial 4-ohm Car Speakers

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600W Peak (300W RMS) 6.5" DXQ Series 2-Way Coaxial 4-ohm Car Speakers

• 300 watts Peak Each, 150 watts RMS Each
• 1" Silk Dome Tweeters
• Yellow Straw Composite Foam cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
$299.95 /pair

In stock

Only 3 Left!

DS18 PRO-CF6.4SLN (Sold Individually)

300W Peak (150W RMS) 6.5" PRO Series Shallow Midrange 4-ohm Motorcycle and Powersports Loudspeaker

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300W Peak (150W RMS) 6.5" PRO Series Shallow Midrange 4-ohm Motorcycle and Powersports Loudspeaker

• 300 watts Peak, 150 watts RMS
• Water Resistant Carbon Fiber
• Impedance: 4 ohm
• Sensitivity: 93 dB

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VIP Product Get $17.50 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
$174.95

In stock

Only 2 Left!

• 300 watts Peak, 150 watts RMS
• Water Resistant Carbon Fiber
• Impedance: 4 ohm
• Sensitivity: 93 dB

Orion HCCA62NDC

2800W Peak (700W RMS) 6.5" HCCA Series Pro Audio Midrange 2ohm Speaker

HCCA62NDC big
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2800W Peak (700W RMS) 6.5" HCCA Series Pro Audio Midrange 2ohm Speaker

• 1400 watts Peak Each, 350 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 2 ohm
• Sensitivity: 97 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your 90
  • Rear Deck Corner
List price $263.99
-17% $219.95 /pair

Available

Ships in 10-14 days

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    FAQ for Speakers in 1990 90

    Q: Can I upgrade or change the Speakers in 1990 Audi 90?

    A: Yes this page includes all the best Speakers that work in your 90.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.