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2019 Honda Civic Si

Shop all 2019 Honda Civic Si Car Audio, Speakers, & Electronics

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Metra 72-7800

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

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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

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• 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

Axxess AXDSPL-HN3 Digital signal processor and T-harness

Allows you to add a DSP and an aftermarket amplifier to the factory system in select 2016-2025 vehicles from Honda

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Allows you to add a DSP and an aftermarket amplifier to the factory system in select 2016-2025 vehicles from Honda

• Plug and Play T-harness for faster installation
• 15-band graphic EQ or 5-band Parametric EQ
• Can be used with OE and aftermarket radios
• Settings adjusted wirelessly from smart device
• Selectable high pass, low pass, or bandpass filters

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• Plug and Play T-harness for faster installation
• 15-band graphic EQ or 5-band Parametric EQ
• Can be used with OE and aftermarket radios
• Settings adjusted wirelessly from smart device
• Selectable high pass, low pass, or bandpass filters

Metra 40-HD23

Reverse Antenna Adapter for select 2016-2025 vehicles from Honda

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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

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

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Metra 82-HD2

Speaker Adapter & Harness Kit for select 2006-2025 vehicles from Honda, Acura (Front & Rear Speakers)

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Speaker Adapter & Harness Kit for select 2006-2025 vehicles from Honda, Acura (Front & Rear Speakers)

• ABS speaker adapter plates (pair)
• Speaker adapter harnesses (pair)
• Compatible with select 2006-2025 vehicles from Honda, Acura Vehicles
• One convenient package to assist in replacing a pair of speakers
• Designed for installation of 6.5" to 6.75" speakers

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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.
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• ABS speaker adapter plates (pair)
• Speaker adapter harnesses (pair)
• Compatible with select 2006-2025 vehicles from Honda, Acura Vehicles
• One convenient package to assist in replacing a pair of speakers
• Designed for installation of 6.5" to 6.75" speakers

Fortin THAR-ONE-HON6

T-Harness For 2016+ Honda Push to start

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T-Harness For 2016+ Honda Push to start

• EVO compatible

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$99.95

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• EVO compatible

Scosche HAA2B Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2008-2025 vehicles from Honda, Acura

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Connect your factory antenna to a new aftermarket radio for select 2008-2025 vehicles from Honda, Acura

• Factory Antenna Adapter
• select 2008-2025 vehicles from Honda, Acura Vehicles
• OEM Quality

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• Factory Antenna Adapter
• select 2008-2025 vehicles from Honda, Acura Vehicles
• OEM Quality

Metra 95-7812B Dash Kit

Install a new Double-DIN car stereo in 2016-2025 Honda Civic, Civic Si, Civic Type R

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Install a new Double-DIN car stereo in 2016-2025 Honda Civic, Civic Si, Civic Type R

• Double-DIN Install Dash Kit
• Accommodates ISO Double DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture
• Compatible with 2016-2025 Honda Civic, Civic Si, Civic Type R Vehicles

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• Double-DIN Install Dash Kit
• Accommodates ISO Double DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture
• Compatible with 2016-2025 Honda Civic, Civic Si, Civic Type R Vehicles

Metra 40-HD11 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2008-2025 vehicles from Honda, Acura

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Connect your factory antenna to a new aftermarket radio for select 2008-2025 vehicles from Honda, Acura

• Antenna Adapter
• Connect the factory antenna cable to aftermarket radio
• Compatible with select 2008-2025 vehicles from Honda, Acura Vehicles

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• Antenna Adapter
• Connect the factory antenna cable to aftermarket radio
• Compatible with select 2008-2025 vehicles from Honda, Acura Vehicles

Scosche SHHA02B

Speaker Harness for select 1986-2025 vehicles from Honda, Acura, Isuzu

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Speaker Harness for select 1986-2025 vehicles from Honda, Acura, Isuzu

• Compatible with select 1986-2025 vehicles from Honda, Acura, Isuzu Vehicles
• Plugs Directly Into Vehicles Harness

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• Compatible with select 1986-2025 vehicles from Honda, Acura, Isuzu Vehicles
• Plugs Directly Into Vehicles Harness

Metra 40-HD31 Antenna Adapter

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

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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

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

Flash Logic ADSTHRHA3

T-Harness Kit for Select 2008-Up Honda and Acura Vehicles

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T-Harness Kit for Select 2008-Up Honda and Acura Vehicles

• Factory Fit Installation T-Harness
• For Select Acura and Honda Vehicles

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• Factory Fit Installation T-Harness
• For Select Acura and Honda Vehicles

PAC LPHHD04

Vehicle Specific Audio Integration T-Harness for select 2013-2023 vehicles from Honda

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Vehicle Specific Audio Integration T-Harness for select 2013-2023 vehicles from Honda

• T-harness to install an aftermarket amplifier, line-out converter or signal processor
• 4-channels of speaker-level signals from factory radio
• Compatible with PAC LocPro line output converters
• Works with amplifiers and sound processors with speaker-level input
• Compatible for select 2013-2023 vehicles from Honda with non-amplified systems

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• T-harness to install an aftermarket amplifier, line-out converter or signal processor
• 4-channels of speaker-level signals from factory radio
• Compatible with PAC LocPro line output converters
• Works with amplifiers and sound processors with speaker-level input
• Compatible for select 2013-2023 vehicles from Honda with non-amplified systems

PAC HO4

Install a New Car Stereo and Retain the Factory Antenna in select 2009-2025 vehicles from Honda, Acura

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Install a New Car Stereo and Retain the Factory Antenna in select 2009-2025 vehicles from Honda, Acura

• Antenna adapter for aftermarket stereos
• Compatible with select 2009-2025 vehicles from Honda, Acura
• Retains the factory antenna
• Plugs into the factory harness

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• Antenna adapter for aftermarket stereos
• Compatible with select 2009-2025 vehicles from Honda, Acura
• Retains the factory antenna
• Plugs into the factory harness

Metra 40-HD21 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2009-2022 vehicles from Honda, Acura

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Connect your factory antenna to a new aftermarket radio for select 2009-2022 vehicles from Honda, Acura

• Honda factory radio to aftermarket antenna for select 2009-up Honda and Acura vehicles

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• Honda factory radio to aftermarket antenna for select 2009-up Honda and Acura vehicles

American International HONK842GB Dash Kit

Install a new Single-DIN or Double-DIN car stereo in 2016-2025 Honda Civic, Civic Si, Civic Type R

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Install a new Single-DIN or Double-DIN car stereo in 2016-2025 Honda Civic, Civic Si, Civic Type R

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

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

Metra 99-7812B Dash Kit

Install a new Single-DIN car stereo in 2016-2025 Honda Civic Si, Civic, Civic Type R

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Install a new Single-DIN car stereo in 2016-2025 Honda Civic Si, Civic, Civic Type R

• Single-DIN Install Dash Kit
• Accommodates ISO Single DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture
• Compatible with 2016-2025 Honda Civic Si, Civic, Civic Type R Vehicles

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• Single-DIN Install Dash Kit
• Accommodates ISO Single DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture
• Compatible with 2016-2025 Honda Civic Si, Civic, Civic Type R Vehicles

Lowest price in 30 days

Metra 99-7821B Dash Kit

Install a new Single-DIN or Double-DIN car stereo in 2016-2025 Honda Civic Si, Civic Type R, Civic

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Install a new Single-DIN or Double-DIN car stereo in 2016-2025 Honda Civic Si, Civic Type R, Civic

• Single and Double DIN Install Dash Kit
• Accommodates ISO Single/Double DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture
• Compatible with 2016-2025 Honda Civic Si, Civic Type R, Civic Vehicles

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Was $509.00 Details
$442.99

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• Single and Double DIN Install Dash Kit
• Accommodates ISO Single/Double DIN Mount
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture
• Compatible with 2016-2025 Honda Civic Si, Civic Type R, Civic Vehicles

Axxess AXTC-HN1 Wiring Interface

Install new car stereo and retains steering wheel audio controls and other factory features in 2016-2021 Honda Civic, Civic Si

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Install new car stereo and retains steering wheel audio controls and other factory features in 2016-2021 Honda Civic, Civic Si

• Provides 12-Volt accessory power (RAP)
• Retains the factory backup camera
• Micro-B USB Updatable
• Built-in ASWC-1

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• Provides 12-Volt accessory power (RAP)
• Retains the factory backup camera
• Micro-B USB Updatable
• Built-in ASWC-1

Metra 40-HD12 Antenna Adapter

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

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

• Connects factory radio to aftermarket stereos
• select 2009-2025 vehicles from Honda, Acura Vehicles

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• Connects factory radio to aftermarket stereos
• select 2009-2025 vehicles from Honda, Acura Vehicles

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Metra 40-HD22

Connect your factory antenna to a new aftermarket radio for select 2009-2022 vehicles from Honda, Acura

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Connect your factory antenna to a new aftermarket radio for select 2009-2022 vehicles from Honda, Acura

• Antenna adapter cable
• Two female Motorola connectors
• Male Honda-style antenna connectors on the other end
• Used to adapt the vehicle’s antenna cable to use with an aftermarket radio

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• Antenna adapter cable
• Two female Motorola connectors
• Male Honda-style antenna connectors on the other end
• Used to adapt the vehicle’s antenna cable to use with an aftermarket radio

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    FAQ for your 2019 Civic Si

    Q: Can I upgrade the factory stereo system in my 2019 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 2019 Civic Si if there is a dash kit and harness solution available.

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    2019 Honda Civic Si

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