Axxess AXLOC-GM31
2-Channel 110W Line Output Converter with Gain Controller for select 2019-2025 vehicles from Chevrolet, GMC with Non-Amplified Systems
2-Channel 110W Line Output Converter with Gain Controller for select 2019-2025 vehicles from Chevrolet, GMC with Non-Amplified Systems
• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2019-2025 vehicles from Chevrolet, GMC with non-amplified systems
VIP Product Get $9.40 in rewards to spend later
• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2019-2025 vehicles from Chevrolet, GMC with non-amplified systems
GROM Audio HON1B3 Bluetooth Streaming Kit (GROM-BT3-HON1)
Add Bluetooth Hands Free Calling and Music Streaming to Select 2001 - 2015 Acura and Honda Factory Radios
Add Bluetooth Hands Free Calling and Music Streaming to Select 2001 - 2015 Acura and Honda Factory Radios
• Hands Free Bluetooth Car Kit
• Compatible With Select 2001 - 2015 Acura and Honda Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player
VIP Product Get $18.00 in rewards to spend later
• Hands Free Bluetooth Car Kit
• Compatible With Select 2001 - 2015 Acura and Honda Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player
GROM Audio AUDU3 (GROM-USB3-AUD)
Android and iOS Smartphone Integration for Select 1998-2009 Audi Vehicles
Android and iOS Smartphone Integration for Select 1998-2009 Audi Vehicles
• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 1998-2009 Audi Stereos
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above
VIP Product Get $17.50 in rewards to spend later
PAC APSUB-GM61
Amplifier and Subwoofer Integration Interface for select 2014-2021 vehicles from Chevrolet, GMC, Cadillac with BOSE Systems
Amplifier and Subwoofer Integration Interface for select 2014-2021 vehicles from Chevrolet, GMC, Cadillac with BOSE Systems
• Amplifier and subwoofer integration interface for select 2014-2021 vehicles from Chevrolet, GMC, Cadillac
• Vehicle must be equipped with a factory BOSE system
• Provides 2-channel non-fading output
• For use with an aftermarket amplifier and subwoofer
• Delivers 5V RMS pre-amp output with bass equalization and level control
VIP Product Get $29.90 in rewards to spend later
• Amplifier and subwoofer integration interface for select 2014-2021 vehicles from Chevrolet, GMC, Cadillac
• Vehicle must be equipped with a factory BOSE system
• Provides 2-channel non-fading output
• For use with an aftermarket amplifier and subwoofer
• Delivers 5V RMS pre-amp output with bass equalization and level control
Stinger HORIZON12 - SRX-GM14128 for 2014-2019 Silverado/Sierra Trucks
12.8" Direct Fit Stereo Upgrade for select 2014-2019 Silverado 2500 HD / 1500 / 3500 HD / 1500 LD and Sierra 2500 HD / 3500 HD / 1500. Plug-n-Play Kit with CarPlay, Android Auto, & Touchscreen (SRXGM14128 / GM14RB12)
12.8" Direct Fit Stereo Upgrade for select 2014-2019 Silverado 2500 HD / 1500 / 3500 HD / 1500 LD and Sierra 2500 HD / 3500 HD / 1500. Plug-n-Play Kit with CarPlay, Android Auto, & Touchscreen (SRXGM14128 / GM14RB12)
• Single DIN and Double DIN Bluetooth Digital Multimedia Receiver
• 12.8 Capacitive Touchscreen Display
• Wired or Wireless Apple CarPlay and Android Auto Compatible
• Built-in Navigation
• Four (4) sets of 4.5 volts preamp outputs
• 15-Band Graphic Equalizer
• SiriusXM Satellite Radio Ready
VIP Product Get $199.90 in rewards to spend later
Crux WVIFD-02
Wi-Fi Connectivity Integration and Audio/Video Interface for select 2011-2015 vehicles from Ford, Lincoln
Wi-Fi Connectivity Integration and Audio/Video Interface for select 2011-2015 vehicles from Ford, Lincoln
• Enables wireless audio/video mirroring
• Accepts dual band (5GHz and 2.4GHz) Wi-Fi capability
• Uses your smartphone virtual remote control via Wi-Fi
• Provides an AV input which can also be used to add a camera
• Enables wireless audio/video mirroring
• Accepts dual band (5GHz and 2.4GHz) Wi-Fi capability
• Uses your smartphone virtual remote control via Wi-Fi
• Provides an AV input which can also be used to add a camera
PAC LPHFD31
Vehicle Specific Audio Integration T-Harness for select 2018-2024 vehicles from Ford
Vehicle Specific Audio Integration T-Harness for select 2018-2024 vehicles from Ford
• Amplifier, LOC, and sound processor integration T-harness for select 2018-2024 vehicles from Ford
• Provides necessary high-level inputs and speaker outputs
• Compatible in non-amplified vehicles with 32-pin connector
• Works with PAC LocPro Advanced LOCs
• Works with amps and sound processors with speaker-level inputs
• Amplifier, LOC, and sound processor integration T-harness for select 2018-2024 vehicles from Ford
• Provides necessary high-level inputs and speaker outputs
• Compatible in non-amplified vehicles with 32-pin connector
• Works with PAC LocPro Advanced LOCs
• Works with amps and sound processors with speaker-level inputs
GROM Audio TOYLB3 Lexus Bluetooth Streaming Kit (GROM-BT3-LEX)
Add Bluetooth Hands Free Calling and Music Streaming to Select 2001-2004 Lexus Factory Radios
Add Bluetooth Hands Free Calling and Music Streaming to Select 2001-2004 Lexus Factory Radios
• Hands Free Bluetooth Car Kit
• Compatible With Select 2001-2004 Lexus Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player
VIP Product Get $18.00 in rewards to spend later
• Hands Free Bluetooth Car Kit
• Compatible With Select 2001-2004 Lexus Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player
JVC KW-Z1000AW
10.1" Direct Replacement Floating Touchscreen Digital Media Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in SiriusXM Ready for select 2011-2023 vehicles from Ram, Jeep, Ford
10.1" Direct Replacement Floating Touchscreen Digital Media Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in SiriusXM Ready for select 2011-2023 vehicles from Ram, Jeep, Ford
• Direct OEM Replacement Bluetooth Digital Multimedia Receiver for select 2011-2023 vehicles from Ram, Jeep, Ford
• 10.1" Capacitive Touchscreen Display
• Supports wireless Apple CarPlay and wireless Android Auto
• 3 sets of 4 volts preamp outputs
• 13-Band Graphic EQ
• SiriusXM and iDataLink Ready
VIP Product Get $144.90 in rewards to spend later
In stock
Only 2 Left!
Available Deal
Eligible items
Shop items below for 100% off up to $575 discount on APEX Kit & RR2 & Harness
Axxess AXLOC-TY3
2-Channel 110W Line Output Converter with Gain Controller for select 2018-2025 vehicles from Toyota with Non-Amplified Systems
2-Channel 110W Line Output Converter with Gain Controller for select 2018-2025 vehicles from Toyota with Non-Amplified Systems
• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2018-2025 vehicles from Toyota with non-amplified systems
VIP Product Get $9.40 in rewards to spend later
• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2018-2025 vehicles from Toyota with non-amplified systems
PAC LPHGM71
Vehicle Specific Audio Integration T-Harness for select 2019-2024 vehicles from GMC, Chevrolet
Vehicle Specific Audio Integration T-Harness for select 2019-2024 vehicles from GMC, Chevrolet
• Amplifier, LOC, or sound processor integration T-harness for select 2019-2024 vehicles from GMC, Chevrolet
• Provides necessary high-level inputs and speaker outputs
• Compatible in non-amplified vehicles with non-BOSE system and 2/29 pin connector
• Works with PAC LocPro Advanced LOCs
• Works with amps and sound processors with speaker-level inputs
• Amplifier, LOC, or sound processor integration T-harness for select 2019-2024 vehicles from GMC, Chevrolet
• Provides necessary high-level inputs and speaker outputs
• Compatible in non-amplified vehicles with non-BOSE system and 2/29 pin connector
• Works with PAC LocPro Advanced LOCs
• Works with amps and sound processors with speaker-level inputs
Crux WVIGM-04
Wi-Fi Connectivity Integration and Audio/Video Interface for select 2006-2017 vehicles from GMC, Chevrolet, Cadillac
Wi-Fi Connectivity Integration and Audio/Video Interface for select 2006-2017 vehicles from GMC, Chevrolet, Cadillac
• Enables wireless audio/video mirroring
• Accepts dual band (5GHz and 2.4GHz) Wi-Fi capability
• Uses your smartphone virtual remote control via Wi-Fi
• Provides an AV input which can also be used to add a camera
VIP Product Get $31.60 in rewards to spend later
• Enables wireless audio/video mirroring
• Accepts dual band (5GHz and 2.4GHz) Wi-Fi capability
• Uses your smartphone virtual remote control via Wi-Fi
• Provides an AV input which can also be used to add a camera
PAC APSUB-FD21
Amplifier and Subwoofer Integration Interface for select 2011-2019 vehicles from Ford with Premium Sony Systems
Amplifier and Subwoofer Integration Interface for select 2011-2019 vehicles from Ford with Premium Sony Systems
• Amplifier and subwoofer integration interface for select 2011-2019 vehicles from Ford
• Vehicle must be equipped with a factory premium Sony system
• Provides 2-channel non-fading output
• For use with an aftermarket amplifier and subwoofer
• Delivers 5V RMS pre-amp output with bass equalization and level control
VIP Product Get $23.90 in rewards to spend later
• Amplifier and subwoofer integration interface for select 2011-2019 vehicles from Ford
• Vehicle must be equipped with a factory premium Sony system
• Provides 2-channel non-fading output
• For use with an aftermarket amplifier and subwoofer
• Delivers 5V RMS pre-amp output with bass equalization and level control
PAC AOEM-GM1416
Amplifier Integration Interface for select 2003-2009 Savana 3500 / 2500 / 1500 and H2 with Standard Audio Systems
Amplifier Integration Interface for select 2003-2009 Savana 3500 / 2500 / 1500 and H2 with Standard Audio Systems
• Amplifier integration interface for select 2003-2009 Savana 3500 / 2500 / 1500 and H2
• Not compatible with premium factory amplified systems
• 4-channel RCA output
• Linear 20-20000 Hz sound reproduction
• For use with an aftermarket amplifier
• Amplifier integration interface for select 2003-2009 Savana 3500 / 2500 / 1500 and H2
• Not compatible with premium factory amplified systems
• 4-channel RCA output
• Linear 20-20000 Hz sound reproduction
• For use with an aftermarket amplifier
PAC LPHTY01
Vehicle Specific Audio Integration T-Harness for select 1985-2021 vehicles from Toyota, Subaru, Scion
Vehicle Specific Audio Integration T-Harness for select 1985-2021 vehicles from Toyota, Subaru, Scion
• 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 1985-2021 vehicles from Toyota, Subaru, Scion with non-amplified systems
• 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 1985-2021 vehicles from Toyota, Subaru, Scion with non-amplified systems
PAC AmpPRO 4 AP4-GM61
AmpPro for Select GM Vehicles with 20-pin and 8-pin Connectors (MOST50) Audio Output Interface
AmpPro for Select GM Vehicles with 20-pin and 8-pin Connectors (MOST50) Audio Output Interface
• Factory Sound System Upgrade
• Time Saving Design
• Plug and Play Installation
• Reliable PAC Quality
VIP Product Get $47.90 in rewards to spend later
• Factory Sound System Upgrade
• Time Saving Design
• Plug and Play Installation
• Reliable PAC Quality
GROM Audio TOYNU3 (GROM-USB3-TOY)
Android and iOS Smartphone Integration for Select 2003-2012 Lexus, Scion and Toyota Vehicles
Android and iOS Smartphone Integration for Select 2003-2012 Lexus, Scion and Toyota Vehicles
• Android, Bluetooth, iPhone Integration Kit
• Compatible With Select 2003-2012 Lexus, Scion and Toyota Stereos
• USB, AUX, Bluetooth, Android, iPod Car Integration
• Android in-car play, charge and control
• Plugs Directly Into Vehicles Harness
• Two EXT ports for AUX-IN, Bluetooth and iPod
• Streaming Audio for Android 4.1 and Above
VIP Product Get $17.50 in rewards to spend later
GROM Audio BMWSB3 BMW Bluetooth Streaming Kit (GROM-BT3-BMWS)
Add Bluetooth Hands Free Calling and Music Streaming to Select 1998-2006 BMW and Mini Factory Radios
Add Bluetooth Hands Free Calling and Music Streaming to Select 1998-2006 BMW and Mini Factory Radios
• Hands Free Bluetooth Car Kit
• Compatible With Select 1998-2006 BMW and Mini Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player
VIP Product Get $18.00 in rewards to spend later
• Hands Free Bluetooth Car Kit
• Compatible With Select 1998-2006 BMW and Mini Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player
Axxess AXLOC-NIS1
2-Channel 110W Line Output Converter with Gain Controller for select 2007-2025 vehicles from Nissan, Subaru, Suzuki with Non-Amplified Systems
2-Channel 110W Line Output Converter with Gain Controller for select 2007-2025 vehicles from Nissan, Subaru, Suzuki with Non-Amplified Systems
• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2007-2025 vehicles from Nissan, Subaru, Suzuki with non-amplified systems
VIP Product Get $9.40 in rewards to spend later
• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2007-2025 vehicles from Nissan, Subaru, Suzuki with non-amplified systems
Axxess AXLOC-VW2
2-Channel 110W Line Output Converter with Gain Controller for select 2015-2025 vehicles from Volkswagen with Non-Amplified Systems
2-Channel 110W Line Output Converter with Gain Controller for select 2015-2025 vehicles from Volkswagen with Non-Amplified Systems
• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2015-2025 vehicles from Volkswagen with non-amplified systems
VIP Product Get $9.40 in rewards to spend later
• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2015-2025 vehicles from Volkswagen with non-amplified systems
FAQ Frequently asked questions in Factory Stereo Upgrades
All About
Factory Stereo Upgrades
When you want to add subwoofers or high-end speakers to a factory system, you need more than just a standard wire splice. Our selection of factory stereo upgrade components ensures that your new gear communicates perfectly with your vehicle’s existing computer systems.
Line Output Converters (LOCs)
Line output converters (LOCs) take the high-level signal meant for your factory speakers and convert it into a low-level RCA signal that an aftermarket amplifier can use.
We carry everything from basic two-channel converters to advanced units from brands like AudioControl, which feature "AccuBASS" to counteract the bass roll-off often programmed into factory stereos.
Digital Signal Processors (DSP)
Factory radios are often tuned to protect cheap paper speakers, resulting in a "flat" or muddy sound. A Digital signal processor (DSP) allows you to take complete control of your acoustic environment.
By using a DSP, you can sum signals, eliminate factory EQ curves, and adjust time alignment so that the music reaches your ears perfectly, regardless of where the speakers are placed.
Vehicle-Specific Interfaces & Harnesses
Cutting into your factory wiring can void warranties and cause electrical headaches. We offer plug-and-play harnesses and interfaces from leaders like iDatalink Maestro and PAC.
These modules allow you to add aftermarket amplifiers while retaining steering wheel controls, factory chimes, and even OnStar or SYNC features.
Why Upgrade Your Factory System?
By integrating high-quality aftermarket amplifiers and speakers into your existing setup, you gain:
- Increased Headroom: Play music louder without distortion
- Full Range Sound: Restore the deep low-end frequencies that factory systems often filter out to protect small speakers
- OEM Aesthetics: Keep your interior looking exactly as the manufacturer intended while enjoying a "stealth" high-end audio system
The Sonic Electronix Advantage
Choosing the right integration part can be complex given the variety of vehicle trims and "premium" sound packages (like Bose, Sony, or Harman Kardon). At Sonic Electronix, we take the guesswork out of the process.
Our Fit Finder is the industry standard for ensuring compatibility. When you shop with us, you aren't just buying a part; you're gaining access to our expert support team and our massive inventory of the latest car audio technology. We offer competitive pricing, fast shipping, and the technical knowledge required to help you build the system of your dreams.
We love people and we're ready to help you! See what separates us from our competition.


































