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Factory Stereo Upgrades

Go beyond factory limitations, eliminate "baked-in" equalization, and add the power your system’s been missing when you shop for specialized OEM integration tools at Sonic Electronix.


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Belva BBTR1 Pioneer, Clarion and Jensen Navigation Video Bypass

Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Stereos

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Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Stereos

•Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Radios
• Auto Parking Brake Bypass Interface
• Simple 3-Wire Installation
• Will Work w/Future Software Updates

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List price $14.99
-47% $7.99

In stock

•Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Radios
• Auto Parking Brake Bypass Interface
• Simple 3-Wire Installation
• Will Work w/Future Software Updates

JL Audio FiX-86

6-Channel OEM Integration Digital Sound Processor with Automatic Time Correction

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6-Channel OEM Integration Digital Sound Processor with Automatic Time Correction

• OEM integration digital signal processor
• 24-bit DSP processor and quad 1/3 octave equalizers
• 8-input and 6-output channels
• Access four user-adjustable 10-band graphic equalizers
• 30-second single button calibration

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$529.99

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• OEM integration digital signal processor
• 24-bit DSP processor and quad 1/3 octave equalizers
• 8-input and 6-output channels
• Access four user-adjustable 10-band graphic equalizers
• 30-second single button calibration

Axxess AXLOC-GM31

2-Channel 110W Line Output Converter with Gain Controller for select 2019-2025 vehicles from Chevrolet, GMC with Non-Amplified Systems

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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

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List price $104.99
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• 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

Limited time!

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

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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

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PAC LPHFD31

Vehicle Specific Audio Integration T-Harness for select 2018-2024 vehicles from Ford

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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

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List price $109.00
-42% $63.00

In stock

• 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

Axxess AXLOC-TY3

2-Channel 110W Line Output Converter with Gain Controller for select 2018-2025 vehicles from Toyota with Non-Amplified Systems

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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

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List price $104.99
-10% $93.99

In stock

• 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

NVX XPLOC4

4-Channel 600W Adjustable Line Output Converter with Remote Turn On

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4-Channel 600W Adjustable Line Output Converter with Remote Turn On

• 4-Channel Premium Adjustable Line Output Converter
• 6:1 Step Down With Adjustable Output
• 600w Total Maximum Input (150w Per Channel)
• Super Low Distortion

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List price $31.24
-20% $24.99

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• 4-Channel Premium Adjustable Line Output Converter
• 6:1 Step Down With Adjustable Output
• 600w Total Maximum Input (150w Per Channel)
• Super Low Distortion

PAC APSUB-GM61

Amplifier and Subwoofer Integration Interface for select 2014-2021 vehicles from Chevrolet, GMC, Cadillac with BOSE Systems

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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

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List price $379.00
-21% $299.00

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• 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

GROM Audio TOYNU3 (GROM-USB3-TOY)

Android and iOS Smartphone Integration for Select 2003-2012 Lexus, Scion and Toyota Vehicles

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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

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$174.99

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PAC LPHGM71

Vehicle Specific Audio Integration T-Harness for select 2019-2024 vehicles from GMC, Chevrolet

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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

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List price $149.00
-42% $86.00

In stock

• 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

PAC AOEM-GM1416

Amplifier Integration Interface for select 2003-2009 Savana 3500 / 2500 / 1500 and H2 with Standard Audio Systems

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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

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List price $129.00
-56% $56.99

In stock

• 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

NVX XPLOC2

2-Channel 300W Adjustable Line Output Converter with Remote Turn On

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2-Channel 300W Adjustable Line Output Converter with Remote Turn On

• 2-Channel Premium Adjustable Line Output Converter
• 3:1 Step Down With Adjustable Output
• 300w Total Maximum Input (150w Per Channel)
• Super Low Distortion

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List price $24.99
-28% $17.99

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Used from: $12.99 Like New from: $22.17

• 2-Channel Premium Adjustable Line Output Converter
• 3:1 Step Down With Adjustable Output
• 300w Total Maximum Input (150w Per Channel)
• Super Low Distortion

NVX XLOC66X

6 Input / 6 Output Line Output Converter with Impedance Matching and Remote Level Control

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6 Input / 6 Output Line Output Converter with Impedance Matching and Remote Level Control

• 6-Channel Speaker Level Inputs
• 6-Channel RCA Outputs
• Handles up to 40V (400 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

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List price $101.99
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• 6-Channel Speaker Level Inputs
• 6-Channel RCA Outputs
• Handles up to 40V (400 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

Hertz S8 DSP

8-Channel Digital Sound Processor with Automatic Time Correction, Digital Equalizer, and High-Resolution Audio

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8-Channel Digital Sound Processor with Automatic Time Correction, Digital Equalizer, and High-Resolution Audio

• 8-Channel Digital Sound Processor
• 7-Band parametric equalizer
• Speaker level (high-level) inputs
• Bluetooth for for added control
• High-resolution audio
• Configurable via S8 DSP application/software

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• 8-Channel Digital Sound Processor
• 7-Band parametric equalizer
• Speaker level (high-level) inputs
• Bluetooth for for added control
• High-resolution audio
• Configurable via S8 DSP application/software

PAC AmpPRO 4 AP4-GM61

AmpPro for Select GM Vehicles with 20-pin and 8-pin Connectors (MOST50) Audio Output Interface

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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

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List price $549.00
-13% $479.00

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• Factory Sound System Upgrade
• Time Saving Design
• Plug and Play Installation
• Reliable PAC Quality

GROM Audio TOYOU3 (GROM-USB3-TOY1)

Android and iOS Smartphone Integration for Select 1998-2012 Lexus and Toyota Vehicles

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Android and iOS Smartphone Integration for Select 1998-2012 Lexus and Toyota Vehicles

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 1998-2012 Lexus and Toyota Stereos
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

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$174.99

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GROM Audio VAGTB3 Bentley and VW Bluetooth Streaming Kit (GROM-BT3-VAGT)

Add Bluetooth Hands Free Calling and Music Streaming to Select 1998-2010 Bentley and VW Factory Radios

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Add Bluetooth Hands Free Calling and Music Streaming to Select 1998-2010 Bentley and VW Factory Radios

• Hands Free Bluetooth Car Kit
• Compatible With Select 1998-2010 Bentley and VW Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

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$179.99

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• Hands Free Bluetooth Car Kit
• Compatible With Select 1998-2010 Bentley and VW Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

PAC LPHTY01

Vehicle Specific Audio Integration T-Harness for select 1985-2021 vehicles from Toyota, Subaru, Scion

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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

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List price $129.00
-54% $58.99

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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 1985-2021 vehicles from Toyota, Subaru, Scion with non-amplified systems

Crux BTS-HN1

Add Bluetooth Streaming, USB, and AUX Support in select 1998-2005 vehicles from Honda

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Add Bluetooth Streaming, USB, and AUX Support in select 1998-2005 vehicles from Honda

• Bluetooth streaming interface
• Compatible with select 1998-2005 vehicles from Honda
• Adds Bluetooth streaming to OEM Honda stereo
• Also adds 3.5mm auxiliary audio input jack
• Replaces the CD changer

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• Bluetooth streaming interface
• Compatible with select 1998-2005 vehicles from Honda
• Adds Bluetooth streaming to OEM Honda stereo
• Also adds 3.5mm auxiliary audio input jack
• Replaces the CD changer

GROM Audio NISKVL2

Factory Radio Android Auto, Apple CarPlay and Navigation Integration Upgrade for select 2008-2015 vehicles from Infiniti

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Factory Radio Android Auto, Apple CarPlay and Navigation Integration Upgrade for select 2008-2015 vehicles from Infiniti

• Factory Radio Integration for VLine Infotainment Systems
• Compatible with select 2008-2015 vehicles from Infiniti
• VLine infotainment system in silver metal enclosure
• Android Auto and Apple CarPlay upgrade via USB or wireless
• Power harnesses, GPS receiver, microphone and USB cable included

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• Factory Radio Integration for VLine Infotainment Systems
• Compatible with select 2008-2015 vehicles from Infiniti
• VLine infotainment system in silver metal enclosure
• Android Auto and Apple CarPlay upgrade via USB or wireless
• Power harnesses, GPS receiver, microphone and USB cable included

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    FAQ Frequently asked questions in Factory Stereo Upgrades


    Yes, you can upgrade your car's factory stereo without voiding the warranty, as long as the installation is done correctly and with compatible aftermarket accessories. Many car manufacturers understand that customers may want to personalize their audio systems, and they allow aftermarket upgrades that do not interfere with the vehicle's essential functions. To avoid any warranty issues, it is essential to choose reputable upgrade accessories from trusted brands. Additionally, consider using professional installation services or following the manufacturer's recommended guidelines when installing the upgrade components. By taking these precautions, you can enjoy an improved audio experience without affecting your car's warranty coverage.
    Yes, upgrading your factory stereo with high-quality accessories can significantly improve sound quality. Factory stereos are often designed to meet cost considerations, resulting in average audio performance. Aftermarket accessories, on the other hand, are built with audio excellence in mind, offering better sound clarity, increased power output, and improved bass response. Upgrading speakers and adding amplifiers can enhance audio reproduction and provide a richer, more balanced sound. Additionally, advanced head units with features like equalizers, sound processors, and digital signal processing can fine-tune the audio output to match your preferences and optimize the sound for your vehicle's interior acoustics. Overall, a well-planned factory stereo upgrade can transform your car's audio system into a premium audio experience.
    Factory stereo upgrade accessories are available for a wide range of car models, but compatibility can vary depending on the vehicle's make and year. It is essential to check the specifications and compatibility of each accessory with your car's make and model before making a purchase. Many reputable manufacturers provide compatibility information on their websites or packaging, making it easier to select the right accessories for your car. Additionally, consider consulting with a car audio specialist or using online resources to find accessories that are confirmed to be compatible with your specific vehicle. By ensuring compatibility, you can enjoy a seamless installation and optimal performance from the upgrade accessories.
    The ability to install factory stereo upgrade accessories yourself depends on your experience and comfort level with car audio installations. Some upgrades, such as replacing speakers or installing a new head unit, may be relatively straightforward for individuals with basic automotive DIY skills. However, certain upgrades, like adding amplifiers or integrating advanced sound processors, can be more complex and may require technical expertise. If you are unsure about the installation process or want to ensure a professional and polished result, it is recommended to seek professional installation services. Professional installers have the necessary tools, knowledge, and experience to perform the upgrade correctly and efficiently, avoiding potential issues and ensuring optimal performance from the upgraded accessories.
    Yes, but it often requires a specialized interface. Premium systems (like Bose or Lexicon) usually use a factory amplifier that sends processed signals to the speakers. To add a sub, you typically need an LOC that can handle high-voltage input or a vehicle-specific T-harness that taps into the signal before it reaches the factory amp.
    High-quality interfaces from brands like PAC or iDatalink are designed to communicate with the vehicle's CAN-bus system. They provide a "Remote Turn-On" lead for your aftermarket amplifiers, ensuring they only power up when the vehicle is on or the radio is active, preventing parasitic battery drain.
    Some modern vehicles (particularly those from Chrysler, Dodge, Jeep, and RAM) perform a "load test" on the speaker outputs. If you disconnect the factory speakers to add an amplifier, the car may think the speakers are blown and mute the audio output entirely. A load-generating device mimics the electrical resistance of a speaker, "tricking" the factory system into operating normally.

    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.

    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?
    Save up to 10 different vehicles in your garage

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    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
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    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.