Garage
Shop

2000 BMW 323i

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 2000 BMW 323i

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.

Loading...
Filters

We are sorry, no available results!

filter-icon Filters & Sort

The Install Bay VXT69

XTC 6" x 9" Foam Acoustic Speaker Baffles

VXT69 big
Go to item page Right Arrow Icon of Right Arrow

XTC 6" x 9" Foam Acoustic Speaker Baffles

• Foam Speaker Baffles
• For 6" x 9" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
35
List price $25.99
-12% $22.99

In stock

Only 3 Left!

• Foam Speaker Baffles
• For 6" x 9" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

Install Bay IBSBF69

2 Piece Speaker Baffle Kit 6X9 Inch - Pkg/Pair

IBSBF69 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece Speaker Baffle Kit 6X9 Inch - Pkg/Pair

• 2 Piece Speaker Baffle Kit 6 × 9 Inch
• Pkg/Pair
• Designed to improve the directional flow of sound waves and focus them into the cabin
• Perfectly seals the speaker against the interior panel
• Offers waterproof protection for the speakers
• Better sealing for better sound

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
List price $61.99
-11% $54.99

In stock

• 2 Piece Speaker Baffle Kit 6 × 9 Inch
• Pkg/Pair
• Designed to improve the directional flow of sound waves and focus them into the cabin
• Perfectly seals the speaker against the interior panel
• Offers waterproof protection for the speakers
• Better sealing for better sound

The Install Bay VXT55

XTC 5" to 5-1/4" Round Foam Acoustic Speaker Baffles

VXT55 big
Go to item page Right Arrow Icon of Right Arrow

XTC 5" to 5-1/4" Round Foam Acoustic Speaker Baffles

• Round Foam Speaker Baffles
• For 5" to 5-1/4" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 323i
16
List price $21.99
-14% $18.99

In stock

• Round Foam Speaker Baffles
• For 5" to 5-1/4" Speakers
• Made from a Waterproof Foam
• Greatly Enhances the Sound and Performance of the Speakers
• Reduces Panel Vibration

Install Bay IBBAF69

Acoustic Speaker Baffles 6" x 9" - Pair

IBBAF69 big
Go to item page Right Arrow Icon of Right Arrow

Acoustic Speaker Baffles 6" x 9" - Pair

• 6" x 9" Acoustic Speaker Baffles
• Sold in Pairs
• Enhances sound quality of speakers
• Protects Rear of Speakers From Rain, etc.
• Trim for Enhanced Bass Response

shipping truck icon Free shipping in USA. Provide zip for delivery date.
Fits select models only.
Add details to confirm fitment.
3
List price $13.99
-14% $11.99

In stock

Only 3 Left!

• 6" x 9" Acoustic Speaker Baffles
• Sold in Pairs
• Enhances sound quality of speakers
• Protects Rear of Speakers From Rain, etc.
• Trim for Enhanced Bass Response

Install Bay IBSBF525

2 Speaker Baffle Kit 5.25" Inch - Pkg/Pair

IBSBF525 big
Go to item page Right Arrow Icon of Right Arrow

2 Speaker Baffle Kit 5.25" Inch - Pkg/Pair

• New design silicone with egg wave foam
• Foldable speaker baffle
• No more trimming or cutting
• Better sealing for better sound
• Water tight seal

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your 323i
1
List price $38.99
-10% $34.99

Available

Ships in 10-14 days

• New design silicone with egg wave foam
• Foldable speaker baffle
• No more trimming or cutting
• Better sealing for better sound
• Water tight seal

Install Bay IBBAF55

5.25" Foam Acoustic Speaker Baffles

IBBAF55 big
Go to item page Right Arrow Icon of Right Arrow

5.25" Foam Acoustic Speaker Baffles

• Foam Acoustic Speaker Baffles
• Fits 5.25" 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 323i
5
List price $13.99
-14% $11.99

In stock

• Foam Acoustic Speaker Baffles
• Fits 5.25" Speakers
• Improves Speaker Performance
• Protects Rear of Speaker Against Moisture

Install Bay IBFG0

0 Gauge (1" Mounting Hole) Waterproof Firewall Grommet

IBFG0 big
Go to item page Right Arrow Icon of Right Arrow

0 Gauge (1" Mounting Hole) Waterproof Firewall Grommet

• 0 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

7
List price $4.99
-20% $3.99

Available

Ships in 10-14 days

• 0 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

Install Bay PSP4

4" x 11" ABS Port Tube Kit - Black

PSP4 big
Go to item page Right Arrow Icon of Right Arrow

4" x 11" ABS Port Tube Kit - Black

• Port Tube Kit for ported enclosures
• Perfect for custom or replacement ported enclosures
• 4"W x 11"L
• Durable ABS plastic construction

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
List price $38.99
-10% $34.99

In stock

• Port Tube Kit for ported enclosures
• Perfect for custom or replacement ported enclosures
• 4"W x 11"L
• Durable ABS plastic construction

Install Bay IBPS75

75 AMP 12V Power Supply

IBPS75 big
Go to item page Right Arrow Icon of Right Arrow

75 AMP 12V Power Supply

• 75 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 1065 Watts

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

VIP Product Get $63.40 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $704.99
-10% $633.99

In stock

Only 1 Left!

• 75 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 1065 Watts

Install Bay Firewall Grommet (IBFG4)

4 Gauge (7/8" Mounting Hole) Waterproof Firewall Grommet

IBFG4 big
Go to item page Right Arrow Icon of Right Arrow

4 Gauge (7/8" Mounting Hole) Waterproof Firewall Grommet

• 4 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

10
List price $3.99
-25% $2.99

In stock

• 4 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

Limited time!

InstallBay Complete 0 Gauge Dual-Amp Kit (AK01)

Dual Amplifier Installation Wiring Kit with 0 Gauge Wiring, 4 Gauge Wiring, Distribution Block, Battery Terminals, and more...

AK01 big
Go to item page Right Arrow Icon of Right Arrow

Dual Amplifier Installation Wiring Kit with 0 Gauge Wiring, 4 Gauge Wiring, Distribution Block, Battery Terminals, and more...

• Complete 0 Gauge Amplifier Installation Kit
• Designed for Systems up to 3600 Watts
• Includes Everything Needed for Installation
• Premium Power and Ground Cable

15% off an NVX XCAP10H w/ Select Amp Kits
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $16.50 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

110
List price $183.99
-10% $164.99

In stock


Available Deal
AK01 main
Offer may end without notice

Eligible items

Shop items below for 15% off up to $100 discount on Get 15% off an NVX XCAP10H


• Complete 0 Gauge Amplifier Installation Kit
• Designed for Systems up to 3600 Watts
• Includes Everything Needed for Installation
• Premium Power and Ground Cable

Install Bay 2" Square Terminal Cup (TCSB2)

Square Binding Post with Nickel Terminals for Subwoofer and Speaker Boxes

TCSB2 big
Go to item page Right Arrow Icon of Right Arrow

Square Binding Post with Nickel Terminals for Subwoofer and Speaker Boxes

• Universal square terminal cup for speaker and subwoofer boxes
• Nickel-plated contacts improve signal transfer
• Installation is a breeze
• Rear connections secure with nuts
• Thumbscrew binding posts secure the connection

shipping truck icon Free shipping in USA. Provide zip for delivery date.
3
List price $7.99
-13% $6.99

In stock

Only 2 Left!

• Universal square terminal cup for speaker and subwoofer boxes
• Nickel-plated contacts improve signal transfer
• Installation is a breeze
• Rear connections secure with nuts
• Thumbscrew binding posts secure the connection

Install Bay PSP6

Complete ABS Port Tube Kit - 6" x 11" Port

PSP6 big
Go to item page Right Arrow Icon of Right Arrow

Complete ABS Port Tube Kit - 6" x 11" Port

• Complete Port Tube Kit
• 6" x 11" Port
• Achieve Greater Sound Pressure Levels with Less Distortion
• High Quality ABS Construction
• Mounting Hole Variations
• Designed in the U.S.A.

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $97.99
-10% $87.99

In stock

Only 2 Left!

• Complete Port Tube Kit
• 6" x 11" Port
• Achieve Greater Sound Pressure Levels with Less Distortion
• High Quality ABS Construction
• Mounting Hole Variations
• Designed in the U.S.A.

Install Bay IBSSR

Panel Mount LED Switch

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

Panel Mount LED Switch

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $16.99
-12% $14.99

In stock

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

The Install Bay IB500

500 Amp Battery Isolator and Relay

IB500 big
Go to item page Right Arrow Icon of Right Arrow

500 Amp Battery Isolator and Relay

• Battery Isolator and Relay
• 500 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

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

VIP Product Get $13.40 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

39
List price $148.99
-10% $133.99

In stock

Only 3 Left!

• Battery Isolator and Relay
• 500 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

Install Bay 2" Round Terminal Cup (TCRBG2)

Round Binding Post with Gold Terminals for Subwoofer and Speaker Boxes

TCRBG2 big
Go to item page Right Arrow Icon of Right Arrow

Round Binding Post with Gold Terminals for Subwoofer and Speaker Boxes

• Universal round terminal cup for speaker and subwoofer boxes
• Gold-plated contacts improve signal transfer
• Installation is a breeze
• Rear connections secure with nuts
• Thumbscrew binding posts secure the connection

shipping truck icon Free shipping in USA. Provide zip for delivery date.
5
List price $7.99
-13% $6.99

In stock

• Universal round terminal cup for speaker and subwoofer boxes
• Gold-plated contacts improve signal transfer
• Installation is a breeze
• Rear connections secure with nuts
• Thumbscrew binding posts secure the connection

Install Bay IBPS55

55 AMP 12V Power Supply

IBPS55 big
Go to item page Right Arrow Icon of Right Arrow

55 AMP 12V Power Supply

• 55 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 780 Watts

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

VIP Product Get $47.30 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $525.99
-10% $472.99

In stock

Only 3 Left!

• 55 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 780 Watts

Install Bay PSP2

Complete ABS Port Tube Kit - 2" x 11" Port

PSP2 big
Go to item page Right Arrow Icon of Right Arrow

Complete ABS Port Tube Kit - 2" x 11" Port

• Complete Port Tube Kit
• 2" x 11" Port
• Achieve Greater Sound Pressure Levels with Less Distortion
• High Quality ABS Construction
• Mounting Hole Variations
• Designed in the U.S.A.

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

2
List price $24.99
-12% $21.99

In stock

Only 2 Left!

• Complete Port Tube Kit
• 2" x 11" Port
• Achieve Greater Sound Pressure Levels with Less Distortion
• High Quality ABS Construction
• Mounting Hole Variations
• Designed in the U.S.A.

The Install Bay SR10

MDF 3/4" Spacer Rings for 10" Speakers (Single)

SR10 big
Go to item page Right Arrow Icon of Right Arrow

MDF 3/4" Spacer Rings for 10" Speakers (Single)

•10" Speaker Ring
• Made from 3/4" MDF
• Perfect for Custom Fiberglass Enclosures

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

10
List price $16.99
-12% $14.99

In stock

•10" Speaker Ring
• Made from 3/4" MDF
• Perfect for Custom Fiberglass Enclosures

Install Bay Ford Interior Trim Retainer Clips (2048PK)

Ford Interior Trim Retainer Clips 9/32" - 25 pack

2048PK big
Go to item page Right Arrow Icon of Right Arrow

Ford Interior Trim Retainer Clips 9/32" - 25 pack

• Interior Trim Retainer Clips
• Size: 9/32"
• For Ford Vehicles
• Pack of 25

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $18.99
-11% $16.99

Available

Ships in 10-14 days

• Interior Trim Retainer Clips
• Size: 9/32"
• For Ford Vehicles
• Pack of 25

Items per page: 20 40 60

    Clear all
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    FAQ for Universal-Fit Audio & Electronics in 2000 323i

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2000 BMW 323i?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your 323i.

    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    2000 BMW 323i

    1985 GMC Caballero

    1998 Mercury Sable

    1969 Ford Thunderbird

    1998 Isuzu Trooper

    2001 Saturn L100

    2018 Porsche Cayenne

    2000 Chevrolet Silverado 2500

    2010 Lexus HS250h

    1995 Ford Mustang

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    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.