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Factory Stereo Upgrades for your 2017 Sierra 3500 HD

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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Axxess AXDSPX-GMM50

Install a DSP and New Amplifier to Factory System in select 2010-2021 vehicles from Chevrolet, GMC, Cadillac with MOST Amplifiers

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Install a DSP and New Amplifier to Factory System in select 2010-2021 vehicles from Chevrolet, GMC, Cadillac with MOST Amplifiers

• Plug and Play T-harness for faster installation
• For select 2010-2021 vehicles from Chevrolet, GMC, Cadillac
• Designed for MOST amplified systems
• Designed to be used with factory radios
• 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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• Plug and Play T-harness for faster installation
• For select 2010-2021 vehicles from Chevrolet, GMC, Cadillac
• Designed for MOST amplified systems
• Designed to be used with factory radios
• 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

Stinger HORIZON12 - SRX-GM14128 for 2014-2019 Silverado/Sierra Trucks

12.8" Direct Fit Stereo Upgrade for select 2014-2019 Silverado 1500 / 3500 HD / 2500 HD / 1500 LD and Sierra 2500 HD / 1500 / 3500 HD. Plug-n-Play Kit with CarPlay, Android Auto, & Touchscreen (SRXGM14128 / GM14RB12)

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12.8" Direct Fit Stereo Upgrade for select 2014-2019 Silverado 1500 / 3500 HD / 2500 HD / 1500 LD and Sierra 2500 HD / 1500 / 3500 HD. 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

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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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• 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

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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-13% $479.00

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

Limited time!

JVC KW-Z800AW

8" Direct Replacement Touchscreen Digital Media Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in SiriusXM Ready for select 2009-2022 vehicles from Ford, Chevrolet, GMC

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8" Direct Replacement Touchscreen Digital Media Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in SiriusXM Ready for select 2009-2022 vehicles from Ford, Chevrolet, GMC

• Direct OEM Replacement Bluetooth Digital Multimedia Receiver for select 2009-2022 vehicles from Ford, Chevrolet, GMC
• 8" 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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List price $1249.00
Save $250.00
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Crux VIMGM-94M

Video In-Motion Activation for select 2014-2024 vehicles from GMC, Chevrolet, Cadillac with 7" MyLink and CUE Radios

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Video In-Motion Activation for select 2014-2024 vehicles from GMC, Chevrolet, Cadillac with 7" MyLink and CUE Radios

• VIM (Video In-Motion) Activation
• For select 2014-2024 vehicles from GMC, Chevrolet, Cadillac
• For vehicles with 7" MyLink and CUE Radios
• Unlocks factory installed radio screen for passenger access
• Plug and play installation

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• VIM (Video In-Motion) Activation
• For select 2014-2024 vehicles from GMC, Chevrolet, Cadillac
• For vehicles with 7" MyLink and CUE Radios
• Unlocks factory installed radio screen for passenger access
• Plug and play installation

PAC CAM-GM51

Reverse Camera Retention Harness For Select 2014 - 2017 GM Vehicles

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Reverse Camera Retention Harness For Select 2014 - 2017 GM Vehicles

• Plug and Play Connection Harness
• For Use When Replacing the Radio<
• Retains Reverse Camera when Installing New Radio
• Male RCA Video Output Connection

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• Plug and Play Connection Harness
• For Use When Replacing the Radio<
• Retains Reverse Camera when Installing New Radio
• Male RCA Video Output Connection

PAC LPHGM51

Vehicle Specific Audio Integration T-Harness for select 2012-2024 vehicles from Chevrolet, GMC, Cadillac

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Vehicle Specific Audio Integration T-Harness for select 2012-2024 vehicles from Chevrolet, GMC, Cadillac

• Amplifier, LOC, and sound processor integration T-harness for select 2012-2024 vehicles from Chevrolet, GMC, Cadillac
• Provides necessary high-level inputs and speaker outputs
• Compatible in non-amplified vehicles with non-BOSE system and 32-pin connector
• Only compatible on vehicles with "IO5" or "IO6" RPO code
• Works with PAC LocPro Advanced LOCs
• Works with amps and sound processors with speaker-level inputs

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List price $109.00
-45% $59.99

In stock

• Amplifier, LOC, and sound processor integration T-harness for select 2012-2024 vehicles from Chevrolet, GMC, Cadillac
• Provides necessary high-level inputs and speaker outputs
• Compatible in non-amplified vehicles with non-BOSE system and 32-pin connector
• Only compatible on vehicles with "IO5" or "IO6" RPO code
• Works with PAC LocPro Advanced LOCs
• Works with amps and sound processors with speaker-level inputs

PAC NU-GM51

Navigation Unlock Interface for select 2010-2025 vehicles from Chevrolet, GMC, Cadillac

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Navigation Unlock Interface for select 2010-2025 vehicles from Chevrolet, GMC, Cadillac

• Navigation Unlock Interface
• Allows for access to factory navigation and Bluetooth features
• Compatible with select 2010-2025 vehicles from Chevrolet, GMC, Cadillac with 8" MyLink / CUE Radio

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• Navigation Unlock Interface
• Allows for access to factory navigation and Bluetooth features
• Compatible with select 2010-2025 vehicles from Chevrolet, GMC, Cadillac with 8" MyLink / CUE Radio

iDataLink Maestro HRN-DSP-GM3 Wiring Harness

Install Aftermarket Amplifier, Maestro AR Module, and DSR1 Processor in select 2012-2024 vehicles from GMC, Chevrolet

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Install Aftermarket Amplifier, Maestro AR Module, and DSR1 Processor in select 2012-2024 vehicles from GMC, Chevrolet

• DSP installation harness for select 2012-2024 vehicles from GMC, Chevrolet
• Compatible for vehicles without factory amplifiers
• Simplifies installation of Maestro AR, DSR1, or new amplifier

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• DSP installation harness for select 2012-2024 vehicles from GMC, Chevrolet
• Compatible for vehicles without factory amplifiers
• Simplifies installation of Maestro AR, DSR1, or new amplifier

PAC APH-GM02

19" Speaker Connection Harnesses for select 2014-2019 vehicles from Chevrolet, GMC, Cadillac with Amplified Systems

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19" Speaker Connection Harnesses for select 2014-2019 vehicles from Chevrolet, GMC, Cadillac with Amplified Systems

• Compatible with select 2014-2019 vehicles from Chevrolet, GMC, Cadillac with factory amplified systems
• Connects aftermarket speakers to the factory speaker harness
• Quick and easy installation
• No cutting necessary
• Plugs directly into harness

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• Compatible with select 2014-2019 vehicles from Chevrolet, GMC, Cadillac with factory amplified systems
• Connects aftermarket speakers to the factory speaker harness
• Quick and easy installation
• No cutting necessary
• Plugs directly into harness

NAV-TV M650-GM

6-Channel Audio Integration Interface for select 2010-2025 vehicles from GMC, Chevrolet, Cadillac with Factory BOSE Sound Systems

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6-Channel Audio Integration Interface for select 2010-2025 vehicles from GMC, Chevrolet, Cadillac with Factory BOSE Sound Systems

• 6-channel audio integration interface
• Designed to integrate with factory OEM systems
• 6 channel analog output (Front L/R, Rear L/R, Sub and Center)
• Compatible with select 2010-2025 vehicles from GMC, Chevrolet, Cadillac with factory BOSE audio systems

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• 6-channel audio integration interface
• Designed to integrate with factory OEM systems
• 6 channel analog output (Front L/R, Rear L/R, Sub and Center)
• Compatible with select 2010-2025 vehicles from GMC, Chevrolet, Cadillac with factory BOSE audio systems

Axxess AXAMP-GM9 Wiring Interface

Install a New Car Amplifier to Factory Stereo in select 2014-2020 vehicles from Chevrolet, GMC, Buick

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Install a New Car Amplifier to Factory Stereo in select 2014-2020 vehicles from Chevrolet, GMC, Buick

• Direct connection to the factory harness
• Compatible with select 2014-2020 vehicles from Chevrolet, GMC, Buick
• Designed for non-amplified systems
• Designed to install a new aftermarket car amplifier
• Provides 6 channels of 5-volt RMS audio
• Chime level adjustment
• No programming required

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• Direct connection to the factory harness
• Compatible with select 2014-2020 vehicles from Chevrolet, GMC, Buick
• Designed for non-amplified systems
• Designed to install a new aftermarket car amplifier
• Provides 6 channels of 5-volt RMS audio
• Chime level adjustment
• No programming required

PAC LPHGM52

Vehicle Specific Audio Integration T-Harness for select 2016-2024 vehicles from Chevrolet, GMC

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Vehicle Specific Audio Integration T-Harness for select 2016-2024 vehicles from Chevrolet, GMC

• Amplifier, LOC, or sound processor integration T-harness for select 2016-2024 vehicles from Chevrolet, GMC
• Provides necessary high-level inputs and speaker outputs
• Compatible in non-amplified vehicles
• Only compatible in vehicles with "IOA" or "IOB" RPO code
• Works with PAC LocPro Advanced LOCs
• Works with amps and sound processors with speaker-level inputs

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List price $109.00
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Ships in 10-14 days

• Amplifier, LOC, or sound processor integration T-harness for select 2016-2024 vehicles from Chevrolet, GMC
• Provides necessary high-level inputs and speaker outputs
• Compatible in non-amplified vehicles
• Only compatible in vehicles with "IOA" or "IOB" RPO code
• Works with PAC LocPro Advanced LOCs
• Works with amps and sound processors with speaker-level inputs

Axxess AXSUB-GM2

Active 2-Channel Line Output Converter and Subwoofer Data Interface for select 2016-2025 vehicles from GMC, Chevrolet, Buick

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Active 2-Channel Line Output Converter and Subwoofer Data Interface for select 2016-2025 vehicles from GMC, Chevrolet, Buick

• Line Output Converter and Subwoofer Data Interface
• Integrates with amplified or non-amplified factory OEM systems
• Allows for the addition of an aftermarket subwoofer
• Compatible with select 2016-2025 vehicles from GMC, Chevrolet, Buick

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• Line Output Converter and Subwoofer Data Interface
• Integrates with amplified or non-amplified factory OEM systems
• Allows for the addition of an aftermarket subwoofer
• Compatible with select 2016-2025 vehicles from GMC, Chevrolet, Buick

PAC TR1 (TR-1)

Video Lockout Bypass Trigger for Alpine, Pioneer, Kenwood and Other Popular Aftermarket Radios

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Video Lockout Bypass Trigger for Alpine, Pioneer, Kenwood and Other Popular Aftermarket Radios

• Video Unlock trigger module
• Unlocks video playback for aftermarket radios while vehicle is in motion
• Works with all popular brand radios like Pioneer, Kenwood, Alpine and more
• No Programming Required

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• Video Unlock trigger module
• Unlocks video playback for aftermarket radios while vehicle is in motion
• Works with all popular brand radios like Pioneer, Kenwood, Alpine and more
• No Programming Required

Vinland Nexus (NXBK-N)

Android 13 Multimedia Smart Box

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Android 13 Multimedia Smart Box

• Android 13 Multimedia Box
• Converts wired to wireless Apple CarPlay and Android Auto
• Android 13 operating system

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• Android 13 Multimedia Box
• Converts wired to wireless Apple CarPlay and Android Auto
• Android 13 operating system

NVX XDSP28

8-Channel X-Series 15 Band Parametric EQ Digital Signal Processor (DSP) with LCD Display, Built-in Bluetooth and Remote Level Controller

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8-Channel X-Series 15 Band Parametric EQ Digital Signal Processor (DSP) with LCD Display, Built-in Bluetooth and Remote Level Controller

• 15 Band Parametric EQ
• 8-Channel RCA Outputs
• Provides up to 2 Volts of output
• Fully adjustable High and Low-pass filters
• Time alignment in 0.02 ms increments

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• 15 Band Parametric EQ
• 8-Channel RCA Outputs
• Provides up to 2 Volts of output
• Fully adjustable High and Low-pass filters
• Time alignment in 0.02 ms increments

AudioControl LC2i PRO

2-Channel 400W Line Output Converter with AccuBASS and ACR-1 Remote

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2-Channel 400W Line Output Converter with AccuBASS and ACR-1 Remote

• 2-Channel Line Out Converter
• AccuBASS processing for correction of bass roll-off
AudioControl ACR-1 REMOTE wired bass remote knob included

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• 2-Channel Line Out Converter
• AccuBASS processing for correction of bass roll-off
AudioControl ACR-1 REMOTE wired bass remote knob included

AudioControl DM-810

10-Channel Matrix Digital Sound Processor with AccuBASS

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10-Channel Matrix Digital Sound Processor with AccuBASS

• Premium matrix digital sound processor
• 8-Channel preamp input and 10-Channel preamp output
• 30-Band equalizer for adjusting gain, delay, and polarity
• High-pass, low-pass and band-pass crossovers
• Features GTO signal sensing, MILC clip detection, and AccuBASS
• Also features signal summing and signal delay

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Used from: $663.20

• Premium matrix digital sound processor
• 8-Channel preamp input and 10-Channel preamp output
• 30-Band equalizer for adjusting gain, delay, and polarity
• High-pass, low-pass and band-pass crossovers
• Features GTO signal sensing, MILC clip detection, and AccuBASS
• Also features signal summing and signal delay

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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?
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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.