Garage
Shop

Loading...
C2-650 main

JL Audio C2-650

200W RMS 6.5" Evolution C2 Series 2-way 4-ohm Component Speaker System

18

$299.99

List price $299.99

Shop all 2023 Honda Civic Si Car Audio, Speakers, & Electronics

Loading...
Filters
filter-icon Filters & Sort

Metra 40-HD23

Reverse Antenna Adapter for select 2016-2025 vehicles from Honda

40-HD23 big
Go to item page Right Arrow Icon of Right Arrow

Reverse Antenna Adapter for select 2016-2025 vehicles from Honda

• Honda 2016-Up Reverse Antenna Adapter
• Adapter for installing aftermarket antenna
• select 2016-2025 vehicles from Honda Vehicles

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

empty

found car based on your search
This product fits your 2023 Civic Si
Was $18.99 Details
$16.99

Available

Ships in 10-14 days

• Honda 2016-Up Reverse Antenna Adapter
• Adapter for installing aftermarket antenna
• select 2016-2025 vehicles from Honda Vehicles

Metra 40-HD31 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2009-2025 vehicles from Honda, Acura

40-HD31 big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 2009-2025 vehicles from Honda, Acura

• select 2009-2025 vehicles from Honda, Acura factory antenna cable to aftermarket radio
• Antenna adapter kit

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

empty

found car based on your search
This product fits your 2023 Civic Si
Was $32.45 Details
$29.99

In stock

Only 2 Left!

• select 2009-2025 vehicles from Honda, Acura factory antenna cable to aftermarket radio
• Antenna adapter kit

Metra 107-HO1 Dash Kit

Install a New Custom Fit 6.8" Pioneer Modular Car Stereo in

107-HO1 big
Go to item page Right Arrow Icon of Right Arrow

Install a New Custom Fit 6.8" Pioneer Modular Car Stereo in

• Stereo dash kit for Honda Civic 2022-Up
• Stereo installation kit designed to fit 6.8-inch Pioneer modular receivers
• Custom textured housing with gloss cover panel
• Includes brackets and hardware parts

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

VIP Product Get $9.20 in rewards to spend later

empty

found car based on your search
This product fits your 2023 Civic Si
Was $102.99 Details
$91.99

In stock

Only 1 Left!

• Stereo dash kit for Honda Civic 2022-Up
• Stereo installation kit designed to fit 6.8-inch Pioneer modular receivers
• Custom textured housing with gloss cover panel
• Includes brackets and hardware parts

Metra 40-HD20 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2005-2025 vehicles from Honda, Mazda, Toyota

40-HD20 big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 2005-2025 vehicles from Honda, Mazda, Toyota

• Factory Radio Cable to Aftermarket Antenna Adapter
• select 2005-2025 vehicles from Honda, Mazda, Toyota Vehicles

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

empty

found car based on your search
This product fits your 2023 Civic Si
2
Was $18.99 Details
$16.99

Available

Ships in 10-14 days

• Factory Radio Cable to Aftermarket Antenna Adapter
• select 2005-2025 vehicles from Honda, Mazda, Toyota Vehicles

Axxess AXSP-HN Wiring Interface

Amplifier Retention Interface for select 2016-2025 vehicles from Honda

AXSP-HN big
Go to item page Right Arrow Icon of Right Arrow

Amplifier Retention Interface for select 2016-2025 vehicles from Honda

• Provides 12-Volt accessory power (RAP)
• Plug and play installation
• Pre-Wired for ASWC-1 (Sold separately)

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

VIP Product Get $11.60 in rewards to spend later

empty

additional information required
Add more info to confirm vehicle fitment
Was $128.99 Details
$115.99

In stock

• Provides 12-Volt accessory power (RAP)
• Plug and play installation
• Pre-Wired for ASWC-1 (Sold separately)

Metra 71-1729

Honda 2008-Up OEM Harness

71-1729 big
Go to item page Right Arrow Icon of Right Arrow

Honda 2008-Up OEM Harness

• Plugs into OEM Radio and designed as a replacement to the Vehicle factory connectors when cut off
• Power and 4-Speaker connections
• Includes 20 Pin plug with factory tight connections

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

empty

found car based on your search
This product fits your 2023 Civic Si
Was $28.99 Details
$25.99

In stock

• Plugs into OEM Radio and designed as a replacement to the Vehicle factory connectors when cut off
• Power and 4-Speaker connections
• Includes 20 Pin plug with factory tight connections

Metra 71-1731

Factory Replacement Wiring Harness with OEM Radio Plug for select 2016-2025 vehicles from Honda

71-1731 big
Go to item page Right Arrow Icon of Right Arrow

Factory Replacement Wiring Harness with OEM Radio Plug for select 2016-2025 vehicles from Honda

• Mates OEM stereo with car wiring harness
• Secure connection to existing connectors avoids splicing
• Pin-to-pin compatibility
• Color-coded wires
• Plugs into factory radio
• Fully terminated

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

empty

additional information required
Add more info to confirm vehicle fitment
Was $57.99 Details
$51.99

In stock

Only 2 Left!

• Mates OEM stereo with car wiring harness
• Secure connection to existing connectors avoids splicing
• Pin-to-pin compatibility
• Color-coded wires
• Plugs into factory radio
• Fully terminated

Limited time!

Kicker CSC65 (46CSC654)

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

CSC654 big
Go to item page Right Arrow Icon of Right Arrow

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

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome zero-protrusion tweeters with neodymium magnets
• Polypropylene cone material with Extended Voice Coil (EVC) technology
• 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
Fits multiple locations in your 2023 Civic Si
  • Front Door
  • Lower Front Door
  • Lower Rear Door
  • Rear Door
110
Was $99.99 Details
Save $23.03
$76.96 /pair

In stock

JBL GX608C (GX608CAM)

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

GX608C big
Go to item page Right Arrow Icon of Right Arrow

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

• 210 watts Peak Each, 70 watts RMS Each
• 1-13/16" Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.3 ohm
• Sensitivity: 92 dB

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

empty

found car based on your search
Fits multiple locations in your 2023 Civic Si
  • Front Door
  • Lower Front Door
  • Lower Rear Door
  • Rear Door
5
Was $119.99 Details
$99.99 /set

In stock

NVX ESP65

360W Peak (120W RMS) 6.5" E-Series 2-Way Coaxial Speakers with 13mm PEI Dome Tweeters

ESP65 big
Go to item page Right Arrow Icon of Right Arrow

360W Peak (120W RMS) 6.5" E-Series 2-Way Coaxial Speakers with 13mm PEI Dome Tweeters

• 180 watts Peak Each, 60 watts RMS Each
• 1/2" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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

VIP Product Get $4.50 in rewards to spend later

empty

found car based on your search
Fits multiple locations in your 2023 Civic Si
  • Front Door
  • Lower Front Door
  • Lower Rear Door
  • Rear Door
9
Was $53.99 Details
$44.99 /pair

In stock

DS18 TWPZ

80W Peak (40W RMS) 1" Slim Dome Super Tweeters

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

80W Peak (40W RMS) 1" Slim Dome Super Tweeters

• 1" Dome Tweeters
• 80 watts Peak Each
• 40 watts RMS Each
• Impedance

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

empty

additional information required
Add more info to confirm vehicle fitment
5
$5.95 /pair

In stock

• 1" Dome Tweeters
• 80 watts Peak Each
• 40 watts RMS Each
• Impedance

JBL Stadium 62CF

660W Peak (220W RMS) 6.5" Stadium Series 2-way Component 3-ohm Speakers

Stadium 62CF big
Go to item page Right Arrow Icon of Right Arrow

660W Peak (220W RMS) 6.5" Stadium Series 2-way Component 3-ohm Speakers

• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Aluminum Edge Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

FREE Baffles, Damping, and More at Checkout! Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $41.00 in rewards to spend later

empty

found car based on your search
Fits multiple locations in your 2023 Civic Si
  • Front Door
  • Lower Front Door
  • Lower Rear Door
  • Rear Door
1
Was $439.95 Details
$409.95 /set

In stock

• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Aluminum Edge Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Memphis Audio SRXP82WTv2 (Sold Indivually)

350W Peak (175W RMS) 8" Street Reference Pro Series 2-way 4-ohm Coaxial Car Speaker with RGB LED Illumination

SRXP82WTv2 big
Go to item page Right Arrow Icon of Right Arrow

350W Peak (175W RMS) 8" Street Reference Pro Series 2-way 4-ohm Coaxial Car Speaker with RGB LED Illumination

• 350 watts Peak Each, 175 watts RMS Each
• 3" Horn tweeters
• Lightweight Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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

BONUS $$$ savings on install gear!

additional information required
Add more info to confirm vehicle fitment
Was $139.95 Details
$99.95

In stock

Only 3 Left!

• 350 watts Peak Each, 175 watts RMS Each
• 3" Horn tweeters
• Lightweight Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

Rockford Fosgate P132

80W Peak (40W RMS) 3.5” Punch Series 2 Way Full Range Coaxial 4-ohm Speakers

P132 big
Go to item page Right Arrow Icon of Right Arrow

80W Peak (40W RMS) 3.5” Punch Series 2 Way Full Range Coaxial 4-ohm Speakers

• 40 watts Peak Each, 20 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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

VIP Product Get $9.00 in rewards to spend later

install icon

BONUS $$$ savings on install gear!

additional information required
Add more info to confirm vehicle fitment
38
$89.99 /pair

In stock

• 40 watts Peak Each, 20 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Hertz SV 200 NEO (SV200 NEO)

1000W Peak (400W RMS) 8" SPL Show Series 4-ohms Midrange Car and Motorcycle Speakers

SV 200 NEO big
Go to item page Right Arrow Icon of Right Arrow

1000W Peak (400W RMS) 8" SPL Show Series 4-ohms Midrange Car and Motorcycle Speakers

• 500 watts Peak Each, 200 watts RMS Each
• Terminals and mounting holes compatible for Harley-Davidson motorbikes
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

FREE Baffles, Damping, and More at Checkout! Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $55.00 in rewards to spend later

install icon

BONUS $$$ savings on install gear!

additional information required
Add more info to confirm vehicle fitment
Was $635.00 Details
$549.99 /pair

In stock

Only 2 Left!

• 500 watts Peak Each, 200 watts RMS Each
• Terminals and mounting holes compatible for Harley-Davidson motorbikes
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 100 dB

AudioControl PNW1

250W Peak (200W RMS) 1" PNW Series Silk Dome Car Tweeters

PNW1 big
Go to item page Right Arrow Icon of Right Arrow

250W Peak (200W RMS) 1" PNW Series Silk Dome Car Tweeters

• 1" PNW Series Dome Tweeters
• 125 watts Peak Each
• 100 watts RMS Each
• 3 ohm Impedance

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

VIP Product Get $11.90 in rewards to spend later

empty

additional information required
Add more info to confirm vehicle fitment
2
Was $149.00 Details
$119.00 /pair

In stock

• 1" PNW Series Dome Tweeters
• 125 watts Peak Each
• 100 watts RMS Each
• 3 ohm Impedance

JL Audio C1-650se

450W Peak (100W RMS) 6.5" C1 Series 2-Way 4-ohm Component Speaker System

C1-650se big
Go to item page Right Arrow Icon of Right Arrow

450W Peak (100W RMS) 6.5" C1 Series 2-Way 4-ohm Component Speaker System


• 50 watts RMS Each
• 1" Silk Dome Tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

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

VIP Product Get $23.00 in rewards to spend later

empty

found car based on your search
Fits multiple locations in your 2023 Civic Si
  • Front Door
  • Lower Front Door
  • Lower Rear Door
  • Rear Door
1
$229.99 /set

In stock


• 50 watts RMS Each
• 1" Silk Dome Tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

DSC650 big
Go to item page Right Arrow Icon of Right Arrow

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

• 240 watts Peak Each, 60 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome zero-protrusion tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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

VIP Product Get $8.00 in rewards to spend later

empty

found car based on your search
Fits multiple locations in your 2023 Civic Si
  • Front Door
  • Lower Front Door
  • Lower Rear Door
  • Rear Door
26
Was $89.99 Details
$79.99 /pair

In stock

Rockford Fosgate Punch P1650

220W Peak (110W RMS) 6.5" Punch P1 Series 2-way 4-ohm Coaxial Speakers

P1650 big
Go to item page Right Arrow Icon of Right Arrow

220W Peak (110W RMS) 6.5" Punch P1 Series 2-way 4-ohm Coaxial Speakers

• 110 watts Peak Each, 55 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material with Vertical Attach Surround Technique (VAST)
• Impedance: 4 ohm
• Sensitivity: 88 dB

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

VIP Product Get $11.00 in rewards to spend later

empty

found car based on your search
Fits multiple locations in your 2023 Civic Si
  • Front Door
  • Lower Front Door
  • Lower Rear Door
  • Rear Door
59
$109.99 /pair

In stock

• 110 watts Peak Each, 55 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material with Vertical Attach Surround Technique (VAST)
• Impedance: 4 ohm
• Sensitivity: 88 dB

NVX XBAF65

2 Piece 6.5" or 6.75" Weatherproof Silicone Rubber Speaker Baffle Kit

XBAF65 big
Go to item page Right Arrow Icon of Right Arrow

2 Piece 6.5" or 6.75" Weatherproof Silicone Rubber Speaker Baffle Kit

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Foldable design allows for varying depths

FREE Speaker Baffles at Checkout! Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 2023 Civic Si
96
Was $34.99 Details
$21.99

In stock

• Acoustically seals speakers for better sound performance
• Prevents front and rear wave cancellation
• Reduces panels vibrations
• Foldable design allows for varying depths

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 2023 Civic Si

    Q: Can I upgrade the factory stereo system in my 2023 Honda Civic Si?

    A: Yes you can improve your sound in your Civic Si by upgrading your speakers and/or adding an amplifier. You may also be able to update the stereo and main display in your 2023 Civic Si if there is a dash kit and harness solution available.

    Save up to 10 different vehicles in your garage

    2023 Honda Civic Si

    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