Garage
Shop

Loading...
Limited time!
CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2-way 4-ohm Coaxial Car Speakers (CSC654)

110

$76.96

List price $99.99

iLX-W650 main

Alpine iLX-W650

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

114

$279.95

List price $349.95

R165X3 main

Rockford Fosgate Prime R165X3

180W Peak (90W RMS) 6.5" Prime Series 3 Way 4-ohm Coaxial Car Speakers

145

$79.99

List price $79.99

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)

34

$129.95

List price $170.00

CPAA-70D main

Power Acoustik CPAA‐70D

Double DIN Touchscreen DVD/CD Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto

19

$132.99

List price $319.99

INE-W970HD main

Alpine INE-W970HD

6.5" Double DIN Touchscreen DVD Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto and Built-in Navigation (SiriusXM Ready)

5

$849.95

List price $1100.00

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-way 4-ohm Coaxial Car Speakers

11

$41.99

List price $41.99

DMX1057XR main

Kenwood eXcelon Reference DMX1057XR

10.1" Double-DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

6

$1,549.99

List price $1750.00

Stadium 62F main

JBL Stadium 62F

510W Peak (170W RMS) 6.5" Stadium Series 2-way Coaxial 3-ohm Speakers

3

$219.95

List price $249.95

MM522 main

Polk Audio MM522 (MM 522)

480W Peak (160W RMS) 5.25" Mobile Monitor Series 2-way 4-ohm Coaxial Car & Marine Speakers

3

$179.00

List price $153.99

Shop all 2003 Acura RSX Car Audio, Speakers, & Electronics

Loading...
Filters
filter-icon Filters & Sort

Race Sport Accessories H11TLED

H11 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pinpoint Projection Optical Aims

H11TLED big
Go to item page Right Arrow Icon of Right Arrow

H11 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pinpoint Projection Optical Aims

• H11 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

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

VIP Product Get $6.90 in rewards to spend later

empty

found car based on your search
This product fits your 2003 RSX
Was $89.00 Details
$69.00

In stock

Only 2 Left!

• H11 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

Metra 72-7800

Install New Speakers in select 1982-2025 vehicles from Honda, Acura, Isuzu

72-7800 big
Go to item page Right Arrow Icon of Right Arrow

Install New Speakers in select 1982-2025 vehicles from Honda, Acura, Isuzu

• Speaker harness for select 1982-2025 vehicles from Honda, Acura, Isuzu
• Connects aftermarket speakers to the factory speaker harness
• Quick and easy installation
• No cutting needed

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

empty

found car based on your search
This product fits your 2003 RSX
82
Was $14.99 Details
$12.99

In stock

• Speaker harness for select 1982-2025 vehicles from Honda, Acura, Isuzu
• Connects aftermarket speakers to the factory speaker harness
• Quick and easy installation
• No cutting needed

Race Sport Accessories H1TLED

H1 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pinpoint Projection Optical Aims

H1TLED big
Go to item page Right Arrow Icon of Right Arrow

H1 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pinpoint Projection Optical Aims

• H1 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

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

VIP Product Get $6.90 in rewards to spend later

empty

found car based on your search
This product fits your 2003 RSX
Was $89.00 Details
$69.00

In stock

Only 1 Left!

• H1 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

PAC AOEM-HON20

Interface Module that Allows the Replacement or Addition of an Amplifier in Select 1998-2007 Honda Vehicles

AOEM-HON20 big
Go to item page Right Arrow Icon of Right Arrow

Interface Module that Allows the Replacement or Addition of an Amplifier in Select 1998-2007 Honda Vehicles

• Interface Module Allows Replacement Or Addition Of Amp
• For Select 1998-2007 Honda Vehicles
• Plug In Installation
• Retains Factory Wiring
• 4 Channel RCA Output
• Trigger Wire

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

empty

found car based on your search
This product fits your 2003 RSX
12
Was $78.00 Details
$52.99

In stock

• Interface Module Allows Replacement Or Addition Of Amp
• For Select 1998-2007 Honda Vehicles
• Plug In Installation
• Retains Factory Wiring
• 4 Channel RCA Output
• Trigger Wire

Metra 82-7500

5-1/4" - 6-1/2" Universal Speaker Adapter Brackets for select 1990-2013 vehicles from Honda, Acura, Mazda

82-7500 big
Go to item page Right Arrow Icon of Right Arrow

5-1/4" - 6-1/2" Universal Speaker Adapter Brackets for select 1990-2013 vehicles from Honda, Acura, Mazda

• ADAPTS 6-1/2" SPEAKERS TO OVERSIZED OEM 6-1/2" OPENING
• Compatible with select 1990-2013 vehicles from Honda, Acura, Mazda Vehicles

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

empty

found car based on your search
Fitment warning: The manufacturer states these adapters fit speaker locations in your vehicle; however, we have yet to verify your vehicle speaker specifications and therefore cannot confirm if or where these adapters will fit.
9
Was $18.99 Details
$16.99

In stock

• ADAPTS 6-1/2" SPEAKERS TO OVERSIZED OEM 6-1/2" OPENING
• Compatible with select 1990-2013 vehicles from Honda, Acura, Mazda Vehicles

Metra 70-1721 Wiring Harness

Install a new car stereo in select 1998-2013 vehicles from Honda, Suzuki, Acura

70-1721 big
Go to item page Right Arrow Icon of Right Arrow

Install a new car stereo in select 1998-2013 vehicles from Honda, Suzuki, Acura

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

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

empty

found car based on your search
This product fits your 2003 RSX
26
Was $6.99 Details
$5.99

In stock

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

American International HSB518

5.25 - 6.5" Speaker Adapter Brackets for select 2002-2007 vehicles from Honda, Acura

HSB518 big
Go to item page Right Arrow Icon of Right Arrow

5.25 - 6.5" Speaker Adapter Brackets for select 2002-2007 vehicles from Honda, Acura

• Compatible with select 2002-2007 vehicles from Honda, Acura Vehicles
• Fits 5.25" - 6.5" Speakers
• High-Grade ABS Plastic
• Sold in Pairs

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

empty

found car based on your search
This speaker adapter fits your 2003 RSX
  • Rear Seat Side Panel 5.25" Full-Range
  • Front Door 6.75" Full-Range
2
Was $24.00 Details
$9.99

In stock

• Compatible with select 2002-2007 vehicles from Honda, Acura Vehicles
• Fits 5.25" - 6.5" Speakers
• High-Grade ABS Plastic
• Sold in Pairs

American International HONK828 (HON-K828)

Install a new Single-DIN car stereo in select 1986-2012 vehicles from Honda, Acura, Isuzu (Black)

HONK828 big
Go to item page Right Arrow Icon of Right Arrow

Install a new Single-DIN car stereo in select 1986-2012 vehicles from Honda, Acura, Isuzu (Black)

• Single-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

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

empty

found car based on your search
This product fits your 2003 RSX
4
Was $34.00 Details
$9.99

In stock

• Single-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

Scosche HA08B Wiring Harness

Install a new car stereo in select 1998-2013 vehicles from Honda, Acura, Suzuki

HA08B big
Go to item page Right Arrow Icon of Right Arrow

Install a new car stereo in select 1998-2013 vehicles from Honda, Acura, Suzuki

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

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

empty

found car based on your search
This product fits your 2003 RSX
142
Was $8.95 Details
$7.95

In stock

Only 3 Left!

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

Metra 82-7807

6.5" to 6.75" Speaker Mounting Adapters for select 2002-2014 vehicles from Honda, Acura

82-7807 big
Go to item page Right Arrow Icon of Right Arrow

6.5" to 6.75" Speaker Mounting Adapters for select 2002-2014 vehicles from Honda, Acura

• 6.5" (or 6.75") Speaker Adapters
• Compatible with select 2002-2014 vehicles from Honda, Acura
• Constructed of ABS plastic
• Includes all necessary hardware
• Sold as a pair

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

VIP Product Get $2.90 in rewards to spend later

empty

found car based on your search
This speaker adapter fits your 2003 RSX
  • Front Door 6.75" Full-Range
Was $32.99 Details
$28.99

In stock

Only 2 Left!

• 6.5" (or 6.75") Speaker Adapters
• Compatible with select 2002-2014 vehicles from Honda, Acura
• Constructed of ABS plastic
• Includes all necessary hardware
• Sold as a pair

GROM Audio MBUSB3 Acura and Honda Bluetooth Streaming Kit (GROM-BT3-MBUS)

Add Bluetooth Hands Free Calling and Music Streaming to Select 1999-2011 Acura and Honda Factory Radios

MBUSB3 big
Go to item page Right Arrow Icon of Right Arrow

Add Bluetooth Hands Free Calling and Music Streaming to Select 1999-2011 Acura and Honda Factory Radios

• Hands Free Bluetooth Car Kit
• Compatible With Select 1999-2011 Acura and Honda Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

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

VIP Product Get $18.00 in rewards to spend later

empty

found car based on your search
This product fits your 2003 RSX
$179.99

Available

Ships in 10-14 days

• Hands Free Bluetooth Car Kit
• Compatible With Select 1999-2011 Acura and Honda Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

Metra 99-7898 Dash Kit

Install a new Single-DIN car stereo in select 1990-2006 vehicles from Honda, Acura, Isuzu

99-7898 big
Go to item page Right Arrow Icon of Right Arrow

Install a new Single-DIN car stereo in select 1990-2006 vehicles from Honda, Acura, Isuzu

• Single-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

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

empty

found car based on your search
This product fits your 2003 RSX
14
Was $33.99 Details
$29.99

In stock

• Single-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

GROM Audio Acura and Honda Smartphone Music Streaming Kit (GROM-USB3-MBUS BTD)

Control Your Streaming Music from an Android or iOS Smartphone on Select 1997-2011 Acura and Honda Factory Radios

BTD,MBUSU3 big
Go to item page Right Arrow Icon of Right Arrow

Control Your Streaming Music from an Android or iOS Smartphone on Select 1997-2011 Acura and Honda Factory Radios

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With 1997-2011 Acura and Honda Stereos
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

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

empty

found car based on your search
This product fits your 2003 RSX
9
Was $239.98 Details
$238.99

In stock

Only 3 Left!

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With 1997-2011 Acura and Honda Stereos
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

Metra 95-7867 Dash Kit

Install a new Double-DIN car stereo in select 2002-2006 Acura RSX

95-7867 big
Go to item page Right Arrow Icon of Right Arrow

Install a new Double-DIN car stereo in select 2002-2006 Acura RSX

• Double-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

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

empty

found car based on your search
This product fits your 2003 RSX
2
Was $29.99 Details
$26.99

In stock

• Double-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

Metra 70-1725 Wiring Harness

Install a new car stereo and retain factory amplifier in 2001-2006 Acura MDX, RSX, CL

70-1725 big
Go to item page Right Arrow Icon of Right Arrow

Install a new car stereo and retain factory amplifier in 2001-2006 Acura MDX, RSX, CL

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

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

empty

additional information required
Add more info to confirm vehicle fitment
10
Was $25.99 Details
$22.99

In stock

Only 3 Left!

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

GROM Audio C-MBUS

OEM Harness to Connect GROM Aux, iPod or USB Interface to Factory Stereo for select 1998-2011 vehicles from Honda, Acura

C-MBUS big
Go to item page Right Arrow Icon of Right Arrow

OEM Harness to Connect GROM Aux, iPod or USB Interface to Factory Stereo for select 1998-2011 vehicles from Honda, Acura

• Connects GROM Aux, iPod or USB interface to CD changer port of car stereo
• Compatible with select 1998-2011 vehicles from Honda, Acura

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

empty

found car based on your search
This product fits your 2003 RSX
$19.99

Available

Ships in 10-14 days

• Connects GROM Aux, iPod or USB interface to CD changer port of car stereo
• Compatible with select 1998-2011 vehicles from Honda, Acura

GROM Audio MBUSU3 (GROM-USB3-MBUS)

Android and iOS Smartphone Integration for Select 1997-2012 Acura and Honda Vehicles

MBUSU3 big
Go to item page Right Arrow Icon of Right Arrow

Android and iOS Smartphone Integration for Select 1997-2012 Acura and Honda Vehicles

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With 1997-2012 Acura and Honda Stereos
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

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

VIP Product Get $17.50 in rewards to spend later

empty

found car based on your search
This product fits your 2003 RSX
$174.99

In stock

Only 3 Left!

Metra 99-7867 Dash Kit

Install a new Single-DIN car stereo in select 2002-2006 Acura RSX

99-7867 big
Go to item page Right Arrow Icon of Right Arrow

Install a new Single-DIN car stereo in select 2002-2006 Acura RSX

• Single-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

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

empty

found car based on your search
This product fits your 2003 RSX
2
Was $47.99 Details
$42.99

Available

Ships in 10-14 days

• Single-DIN Dash Kit
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

02-06-ACURA-RSX-KSPKG big
Go to item page Right Arrow Icon of Right Arrow

Fits select 2002-2006 Acura RSX

• Front and Rear Kicker 6.5" Coaxial Speakers
• Metra Speaker Adapters and Harnesses
• Plug-n-play Installation

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

empty

found car based on your search
This product fits your 2003 RSX
201
Was $267.94 Details
$213.88

In stock

• Front and Rear Kicker 6.5" Coaxial Speakers
• Metra Speaker Adapters and Harnesses
• Plug-n-play Installation

07-13-ACURA-MDX-S-ALP big
Go to item page Right Arrow Icon of Right Arrow

Fits

• 160 watts Peak Each, 45 watts RMS Each
• 0.78" Teteron Dome tweeters
• Injection Molded Polypropylene - IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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

empty

found car based on your search
This product fits your 2003 RSX
83
Was $94.99 Details
$82.94

In stock

• 160 watts Peak Each, 45 watts RMS Each
• 0.78" Teteron Dome tweeters
• Injection Molded Polypropylene - IMPP cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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 your 2003 RSX

    Q: Can I upgrade the factory stereo system in my 2003 Acura RSX?

    A: Yes you can improve your sound in your RSX by upgrading your speakers and/or adding an amplifier. You may also be able to update the stereo and main display in your 2003 RSX if there is a dash kit and harness solution available.

    Save up to 10 different vehicles in your garage

    2003 Acura RSX

    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