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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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GROM Audio BMWTU3 (GROM-USB3-BMWT)

Android and iOS Smartphone Integration for Select 1997-2010 BMW & Rover Vehicles

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Android and iOS Smartphone Integration for Select 1997-2010 BMW & Rover Vehicles

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With 1997-2010 BMW, Mini & Rover 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 MITS08A1

Auxillary Cable Input Car Stereo Kit with 3.5mm Cable for select 2007-2013 vehicles from Mitsubishi

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Auxillary Cable Input Car Stereo Kit with 3.5mm Cable for select 2007-2013 vehicles from Mitsubishi

• Auxillary Cable Input Car Stereo Kit for select 2007-2013 vehicles from Mitsubishi
• Easy connection between the car stereo and MP3/smartphone/iPod
• Includes a 5 ft. 3.5mm audio phone jack cable

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$96.99

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Ships in 10-14 days

• Auxillary Cable Input Car Stereo Kit for select 2007-2013 vehicles from Mitsubishi
• Easy connection between the car stereo and MP3/smartphone/iPod
• Includes a 5 ft. 3.5mm audio phone jack cable

GROM Audio SUB08B3 Subaru Bluetooth Streaming Kit (GROM-BT3-SUB08)

Add Bluetooth Hands Free Calling and Music Streaming to Select 2003-2014 Subaru Factory Radiosselect 2002-2014 vehicles from Subaru

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Add Bluetooth Hands Free Calling and Music Streaming to Select 2003-2014 Subaru Factory Radiosselect 2002-2014 vehicles from Subaru

• Hands Free Bluetooth Car Kit
• Compatible With Select 2006-2009 Subaru 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 2006-2009 Subaru Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

Axxess LOC-FDH3 Active LOC T-Harness

Add an Amplifier and Subwoofer to Factory Stereo in select 2018-2025 vehicles from Ford

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Add an Amplifier and Subwoofer to Factory Stereo in select 2018-2025 vehicles from Ford

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

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List price $71.99
-11% $63.99

In stock

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

GROM Audio VOLSO4 (GROM-MST4-VOLSO4)

Android and iOS Smartphone Integration for Select 2005-2013 Volvo Vehicles with Fiber Optic Radio

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Android and iOS Smartphone Integration for Select 2005-2013 Volvo Vehicles with Fiber Optic Radio

• Android, Bluetooth, iPhone Integration Kit
• Compatible With Select 2005-2013 Volvo
• 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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$289.99

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• Android, Bluetooth, iPhone Integration Kit
• Compatible With Select 2005-2013 Volvo
• 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

Crux VIMMB-85N

Video In-Motion Activation for select 2015-2018 vehicles from Mercedes-Benz with Comand Online NTG5 / 5.1 / 5.5 Navigation Systems

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Video In-Motion Activation for select 2015-2018 vehicles from Mercedes-Benz with Comand Online NTG5 / 5.1 / 5.5 Navigation Systems

• VIM (Video In-Motion) Activation
• For select 2015-2018 vehicles from Mercedes-Benz
• For vehicles with Comand Online NTG5 / 5.1 / 5.5 Navigation Systems
• Retains factory-installed navigation system for passenger access
• Onscreen access to Factory Bluetooth Keypad
• Navigation Destination Address Entry
• Plug and play installation

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List price $357.00
-36% $229.50

In stock.

• VIM (Video In-Motion) Activation
• For select 2015-2018 vehicles from Mercedes-Benz
• For vehicles with Comand Online NTG5 / 5.1 / 5.5 Navigation Systems
• Retains factory-installed navigation system for passenger access
• Onscreen access to Factory Bluetooth Keypad
• Navigation Destination Address Entry
• Plug and play installation

Axxess AXDSPX-BMWM25

Install a New Amplifier to Factory System in select 2010-2025 vehicles from BMW with MOST Amplifier

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Install a New Amplifier to Factory System in select 2010-2025 vehicles from BMW with MOST Amplifier

• Plug and Play T-harness for faster installation
• For select 2010-2025 vehicles from BMW
• Designed for MOST amplified sound systems
• Selectable 31-band graphic EQ or 5-band parametric EQ
• Settings adjusted via Bluetooth in a smart device
• Selectable high pass, low pass, or bandpass filters

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List price $708.99
-10% $637.99

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• Plug and Play T-harness for faster installation
• For select 2010-2025 vehicles from BMW
• Designed for MOST amplified sound systems
• Selectable 31-band graphic EQ or 5-band parametric EQ
• Settings adjusted via Bluetooth in a smart device
• Selectable high pass, low pass, or bandpass filters

PAC LPHTY02

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

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

• 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 2018-2024 vehicles from Toyota with non-amplified systems

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List price $129.00
-43% $73.00

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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 2018-2024 vehicles from Toyota with non-amplified systems

Dynavin D9-E46-64GB

7" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto for select 1998-2006 vehicles from BMW (SiriusXM Ready)

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7" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto for select 1998-2006 vehicles from BMW (SiriusXM Ready)

• Compatible with Business CD units
• Custom Fit In-Dash Bluetooth Digital Multimedia Receiver
• 7" Capacitive Touchscreen Display
• Apple CarPlay and Android Auto Compatible
• Built-in Navigation
• 3 sets of 3 volts preamp outputs
• 16-Band Parametric EQ
• SiriusXM Satellite Radio Ready
• Integrated CANBUS for steering wheel controls

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$799.99

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GROM Audio NISKVT2

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
• Supports maps, music, messaging and calls

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List price $559.95
$549.95

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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
• Supports maps, music, messaging and calls

Axxess AXBUCH-T3

Install a New Car Stereo and Add or Retain Backup Camera in select 2013-2016 vehicles from Toyota, Scion

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Install a New Car Stereo and Add or Retain Backup Camera in select 2013-2016 vehicles from Toyota, Scion

• Camera retention and add-on harness
• Compatible with select 2013-2016 vehicles from Toyota, Scion with display and navigation stereos
• Retains the factory backup camera to an aftermarket radio
• Applicable for display and navigation model radios

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List price $51.99
-12% $45.99

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• Camera retention and add-on harness
• Compatible with select 2013-2016 vehicles from Toyota, Scion with display and navigation stereos
• Retains the factory backup camera to an aftermarket radio
• Applicable for display and navigation model radios

DS18 DSP4.8BTM

8-Channel Digital Sound Processor with Bluetooth

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8-Channel Digital Sound Processor with Bluetooth

• 4-Channel input and 8-Channel out digital sound processor
• Bluetooth connectivity via DS18 DSP App
• IOS and Android Compatible
• Durable coated PCB

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$275.95

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• 4-Channel input and 8-Channel out digital sound processor
• Bluetooth connectivity via DS18 DSP App
• IOS and Android Compatible
• Durable coated PCB

Dynavin D9-W211-MOST-64GB

9" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Wired/Wireless Apple CarPlay and Android Auto for select 2002-2009 vehicles from Mercedes-Benz (SiriusXM Ready)

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9" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Wired/Wireless Apple CarPlay and Android Auto for select 2002-2009 vehicles from Mercedes-Benz (SiriusXM Ready)

Dynavin Loop Bypass required and sold separately
• Custom Fit In-Dash Bluetooth Digital Multimedia Receiver
• 9" Capacitive Touchscreen Display
• Wireless Apple CarPlay and Android Auto Compatible
• Built-in Navigation
• 3 sets of 3 volts preamp outputs
• 16-Band Parametric Equalizer
• SiriusXM Satellite Radio Ready
• Integrated CANBUS for steering wheel controls

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$879.99

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GROM Audio CHR02U3 (GROM-USB3-CHR02)

Android and iOS Compatable Bluetooth Integration for Select 2002-2007 Chrysler, Dodge & Jeep Vehicles

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Android and iOS Compatable Bluetooth Integration for Select 2002-2007 Chrysler, Dodge & Jeep Vehicles

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With 2002-2007 Chrysler, Dodge & Jeep 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 VOL01B3 Volvo Bluetooth Streaming Kit (GROM-BT3-VOL01)

Add Bluetooth Hands Free Calling and Music Streaming to Select 2000-2009 Volvo Factory Radios

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Add Bluetooth Hands Free Calling and Music Streaming to Select 2000-2009 Volvo Factory Radios

• Hands Free Bluetooth Car Kit
• Compatible With Select 2000-2009 Volvo 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 2000-2009 Volvo Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

GROM Audio CHRUVT2

Factory Radio Android Auto, Apple CarPlay and Navigation Integration Upgrade for select 2014-2023 vehicles from Dodge, Jeep, Ram

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Factory Radio Android Auto, Apple CarPlay and Navigation Integration Upgrade for select 2014-2023 vehicles from Dodge, Jeep, Ram

• Factory Radio Integration for VLite VT2 Infotainment Systems
• Compatible with select 2014-2023 vehicles from Dodge, Jeep, Ram
• 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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$559.95

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• Factory Radio Integration for VLite VT2 Infotainment Systems
• Compatible with select 2014-2023 vehicles from Dodge, Jeep, Ram
• 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

Dynavin D9-MBC-64GB

7" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Wired/Wireless Apple CarPlay and Android Auto for select 2004-2011 vehicles from Mercedes-Benz (SirusXM Ready)

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7" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Wired/Wireless Apple CarPlay and Android Auto for select 2004-2011 vehicles from Mercedes-Benz (SirusXM Ready)

• MOST LOOP required and sold separately
• Custom Fit In-Dash Bluetooth Digital Multimedia Receiver
• 7" Capacitive Touchscreen Display
• Apple CarPlay and Android Auto Compatible
• Built-in Navigation
• 3 sets of 3 volts preamp outputs
• 16-Band Parametric Equalizer
• SiriusXM Satellite Radio Ready
• Integrated CANBUS for steering wheel controls

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$799.99

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Dynavin D9-DF31-64GB

9" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto for select 2010-2014 Golf (SiriusXM Ready)

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9" Custom-Fit Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto for select 2010-2014 Golf (SiriusXM Ready)

• Custom Fit In-Dash Bluetooth Digital Multimedia Receiver
• 9" Capacitive Touchscreen Display
• Apple CarPlay and Android Auto Compatible
• Built-in Navigation
• 3 sets of 3 volts preamp outputs
• 16-Band Equalizer
• SiriusXM Satellite Radio Ready
• Integrated CANBUS for steering wheel controls

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$799.99

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PAC AP4-CH42

AmpPRO Series Amplifier Integration Interface for select 2021-2024 vehicles from Ram, Chrysler, Jeep

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AmpPRO Series Amplifier Integration Interface for select 2021-2024 vehicles from Ram, Chrysler, Jeep

• Amplifier integration interface for select 2021-2024 vehicles from Ram, Chrysler, Jeep
• Compatible on vehicles with 32-Pin and 12-Pin Connectors
• Compatible in select non-amplified and amplified systems
• Variable volume, fade, balance, bass, mid, and treble
• Retains uConnect, Bluetooth audio, Navigation, and chimes

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List price $499.00
-16% $419.00

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• Amplifier integration interface for select 2021-2024 vehicles from Ram, Chrysler, Jeep
• Compatible on vehicles with 32-Pin and 12-Pin Connectors
• Compatible in select non-amplified and amplified systems
• Variable volume, fade, balance, bass, mid, and treble
• Retains uConnect, Bluetooth audio, Navigation, and chimes

GROM Audio Lexus and Toyota Smartphone Music Streaming Kit (GROM-USB3-TOY1 BTD)

Control Your Streaming Music from an Android or iOS Smartphone on Select 1998-2012 Lexus and Toyota Factory Radios

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Control Your Streaming Music from an Android or iOS Smartphone on Select 1998-2012 Lexus and Toyota Factory Radios

• 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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• 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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    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

    Add vehicle
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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.