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1991 BMW 535i

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.

Universal-Fit Audio for 1991 BMW 535i

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.

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NVX FRING68

Universal 6x8" or 5x7" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

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Universal 6x8" or 5x7" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

• 6x8" or 5x7" Self-Adhesive Foam Speaker Baffle Ring Kit
• Waterproof automotive-grade high-density foam strips
• Prevents front and rear wave cancellation and panel vibrations
• Designed for use with 6x8" or 5x7" speakers
• Pack of 2

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
12
List price $29.99
-47% $15.99

In stock

Used from: $11.19
Limited time!

NVX XBAF68

Universal 6x8" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

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Universal 6x8" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

• 6x8" Self-Adhesive Foam Speaker Baffle Ring Kit
• Waterproof foldable silicone baffles with egg crate foam
• Foldable rings allow for perfect fitment at varying depths
• Designed for use with 6x8" speakers
• Pack of 2

Free Speaker Accessory at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
12
List price $29.99
-27% $21.99

In stock

Used from: $15.39

Metra 44-UL15 Antenna

Locking 1-3/4" Top Mount with Key for Universal Applications

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Locking 1-3/4" Top Mount with Key for Universal Applications

• Universal Replacement Locking Retractable Antenna
• Locking Top Mount with Key
• 48" Cable

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
1
List price $64.99
-42% $37.99

In stock

Only 2 Left!

• Universal Replacement Locking Retractable Antenna
• Locking Top Mount with Key
• 48" Cable

Stinger Roadkill RKFR5768

3pc FAST Foam Speaker Enhancer System Kit for 5"x7" and 6"x8" Drivers

RKFR5768 big
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3pc FAST Foam Speaker Enhancer System Kit for 5"x7" and 6"x8" Drivers

• F.A.S.T. Ring Kit for 5"x7" and 6"x8" Speakers
• Includes 3 piece foam speaker rings
• Acoustically seals speakers for better sound performance
• Absorbs rear wave, prevents front and rear wave cancellation and reduces panels vibrations

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
6
List price $39.00
-44% $21.99

In stock

• F.A.S.T. Ring Kit for 5"x7" and 6"x8" Speakers
• Includes 3 piece foam speaker rings
• Acoustically seals speakers for better sound performance
• Absorbs rear wave, prevents front and rear wave cancellation and reduces panels vibrations

Install Bay 6" x 8" Foam Acoustic Speaker Baffles (VXT68)

XTC 6" x 8" Foam Acoustic Speaker Baffles create a tight, acoustic seal behind the speaker to enhance the sound quality

VXT68 big
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XTC 6" x 8" Foam Acoustic Speaker Baffles create a tight, acoustic seal behind the speaker to enhance the sound quality

• Standard Acoustic Speaker Baffles
• Includes a pair of 6" x 8" oval baffles
• Made from a waterproof foam
• Creates a tight, acoustic seal behind the speaker to enhance the sound quality
• Compresses and forms to the shape of most installations
• Reduces panel vibration
• Greatly enhances the sound and performance of the speakers

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
1
List price $25.99
-12% $22.99

In stock

• Standard Acoustic Speaker Baffles
• Includes a pair of 6" x 8" oval baffles
• Made from a waterproof foam
• Creates a tight, acoustic seal behind the speaker to enhance the sound quality
• Compresses and forms to the shape of most installations
• Reduces panel vibration
• Greatly enhances the sound and performance of the speakers

Install Bay IBBAF57

5" x 7" Foam Acoustic Speaker Baffles

IBBAF57 big
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5" x 7" Foam Acoustic Speaker Baffles

• Foam Acoustic Speaker Baffles
• Fits 5" x 7" Speakers
• Improves Speaker Performance
• Protects Rear of Speaker Against Moisture

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
2
List price $16.99
-12% $14.99

In stock

• Foam Acoustic Speaker Baffles
• Fits 5" x 7" Speakers
• Improves Speaker Performance
• Protects Rear of Speaker Against Moisture

Install Bay IBBAF68

6" x 8" Foam Acoustic Speaker Baffles

IBBAF68 big
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6" x 8" Foam Acoustic Speaker Baffles

• Foam Acoustic Speaker Baffles
• Fits 6" x 8" Speakers
• Improves Speaker Performance
• Protects Rear of Speaker Against Moisture

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
3
List price $16.99
-12% $14.99

Available

Ships in 10-14 days

• Foam Acoustic Speaker Baffles
• Fits 6" x 8" Speakers
• Improves Speaker Performance
• Protects Rear of Speaker Against Moisture

NVX XBAF68 (Open Box, Great)

2 Piece Universal 6"x8” and 5"x7" Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

XBAF68 big
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2 Piece Universal 6"x8” and 5"x7" Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF68's will last a lifetime

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
List price $29.99
-49% $15.39

In stock

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF68's will last a lifetime

NVX XBAF68 with Sound Damping

2 Piece Universal 6"x8” and 5"x7" Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad + NVX SDBSK2 Premium Sound Damping

XBAF68_SDBSK2_ACC_KIT big
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2 Piece Universal 6"x8” and 5"x7" Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad + NVX SDBSK2 Premium Sound Damping

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF68's will last a lifetime

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
59
List price $48.73
-28% $34.99

In stock

NVX FRING68 (Open Box, Good)

2 Piece 5"x7" or 6"x8" Self-Adhesive Foam Speaker Ring Baffle Kit

FRING68 big
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2 Piece 5"x7" or 6"x8" Self-Adhesive Foam Speaker Ring Baffle Kit

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
List price $29.99
-40% $18.12

In stock

Only 2 Left!

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

NVX FRING68 (Open Box, Great)

2 Piece 5"x7" or 6"x8" Self-Adhesive Foam Speaker Ring Baffle Kit

FRING68 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece 5"x7" or 6"x8" Self-Adhesive Foam Speaker Ring Baffle Kit

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
List price $29.99
-63% $11.19

In stock

Only 1 Left!

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

NVX XBAF68 Baffle Accessory Kit

2 Piece Universal 6x8” / 5x7" Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad + 1.38 Square Feet of Sound Damping (Two 10" x 10" Pieces)

XBAF68_SDSK2_BACC_KIT big
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2 Piece Universal 6x8” / 5x7" Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad + 1.38 Square Feet of Sound Damping (Two 10" x 10" Pieces)

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF68's will last a lifetime
• Includes Sound Damping

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
59
List price $48.73
-28% $34.99

In stock

NVX FRING68 Basic Speaker Accessory Kit

2 Piece 5x7" / 6x8" Self-Adhesive Foam Speaker Ring Baffle Kit with 1.38 Square Feet of Sound Dampening Material (Two 10" x 10" Pieces)

FRING68_SDSK2_ACC_KIT big
Go to item page Right Arrow Icon of Right Arrow

2 Piece 5x7" / 6x8" Self-Adhesive Foam Speaker Ring Baffle Kit with 1.38 Square Feet of Sound Dampening Material (Two 10" x 10" Pieces)

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
59
List price $48.73
-41% $28.99

In stock

NVX FRING68 Basic Speaker Installation Kit

2 Piece 5x7" / 6x8" Self-Adhesive Foam Speaker Ring Baffle Kit + 2 Sheets Sound Dampening Material and Roller with 6 Piece Removal Tool Kit

FRING68_K2_R1_06_INST_KIT big
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2 Piece 5x7" / 6x8" Self-Adhesive Foam Speaker Ring Baffle Kit + 2 Sheets Sound Dampening Material and Roller with 6 Piece Removal Tool Kit

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Easy peel and stick installation

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
230
List price $82.71
-40% $49.99

In stock

NVX FRING68 6 x 8" Speaker Installation Kit

Includes : 2 Piece Foam Speaker Rings, Door Panel Removal Kit, Sound Deadening and Roller

FRING68, SDSK2, SDRLR1, BTK106 big
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Includes : 2 Piece Foam Speaker Rings, Door Panel Removal Kit, Sound Deadening and Roller

• 2pc Foam Speaker Ring Kit for 5.25" Drivers with Egg Crate Foam Base
• Creates a tight seal around your speaker for optimum sound quality
• Egg crate foam base helps absorb unwanted echoes and reverberation
• Compatible with 6x8" or 5x7" speakers
• Reduce door panel vibration

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
230
List price $82.71
-38% $51.26

In stock

• 2pc Foam Speaker Ring Kit for 5.25" Drivers with Egg Crate Foam Base
• Creates a tight seal around your speaker for optimum sound quality
• Egg crate foam base helps absorb unwanted echoes and reverberation
• Compatible with 6x8" or 5x7" speakers
• Reduce door panel vibration

NVX XBAF68 Premium Speaker Installation Kit

2 Piece Universal 6x8” / 5x7" Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad with Sound Damping + Removal Tool Kit and Sound Deadening

XBAF68_K2_05_R2_INST_KIT big
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2 Piece Universal 6x8” / 5x7" Silicone Rubber Speaker Baffles with Self Adhesive Foam Base Pad with Sound Damping + Removal Tool Kit and Sound Deadening

• Foldable Silicone with egg crate foam
• Creates a tight seal around your speaker for optimum sound quality
• Waterproof material
• The foam baffles from the competitors will deteriorate over time, while the rubber XBAF68's will last a lifetime

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 535i
151
List price $82.71
-31% $56.99

In stock

Directed 520T

12 Volt Backup Battery and Sensor

520T big
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12 Volt Backup Battery and Sensor

• 12 Volt Backup Battery System
• Powers siren when battery is disabled

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Universal Icon Universal – fits most vehicles.

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7
List price $72.99
-58% $30.99

In stock

• 12 Volt Backup Battery System
• Powers siren when battery is disabled

Stinger SGJ78

8-1/4" Cross Flow Cooling Fan

SGJ78 big
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8-1/4" Cross Flow Cooling Fan

• 8-1/4"
• Cross Flow Cooling Fan
• Keeps Components Running Cool
• Easy Installation

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Universal Icon Universal – fits most vehicles.

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15
List price $119.00
-52% $56.99

In stock

• 8-1/4"
• Cross Flow Cooling Fan
• Keeps Components Running Cool
• Easy Installation

JL Audio RBC-1

Flush-Mount Wired Bass Remote Controller for Select JL Audio Amplifiers

RBC-1 big
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Flush-Mount Wired Bass Remote Controller for Select JL Audio Amplifiers

• Wired Bass Remote Controller
• Compatible with select JL Audio amplifiers
• Flush-mountable installation
• Color: Black

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Universal Icon Universal – fits most vehicles.

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67
$59.99

In stock

Used from: $41.99

• Wired Bass Remote Controller
• Compatible with select JL Audio amplifiers
• Flush-mountable installation
• Color: Black

Directed 508D

Invisibeam Field Disturbance Sensor

508D big
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Invisibeam Field Disturbance Sensor

• Invisibeam® Field Disturbance Sensor
• Generates two invisible detection fields around your vehicle
• Offers 2 response types

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

14
List price $94.99
-52% $45.99

In stock

Only 2 Left!

• Invisibeam® Field Disturbance Sensor
• Generates two invisible detection fields around your vehicle
• Offers 2 response types

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    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1991 BMW 535i?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your 535i.

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    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
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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:

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