Garage
Shop

Car Audio & Electronics

Find Car Audio & Video that fits your car, truck, SUV and more. Shopping for car electronics is easy and guaranteed! We're headquartered in Louisville, Kentucky and full of experts ready to help you with fast and free shipping, lifetime tech support and the best prices from all the top brands.

Top sellers

Loading...
Filters
You Recently Chose:

filter-icon Filters & Sort

NVX BIR500

500-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 700-Amp Surge)

BIR500 big
Go to item page Right Arrow Icon of Right Arrow

500-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 700-Amp Surge)

• 500-Amp continuous / 700-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16V DC operating range

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $8.00 in rewards to spend later

36
List price $95.99
-17% $79.99

In stock

Used from: $85.99

• 500-Amp continuous / 700-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16V DC operating range

NVX XSBI500

500-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 700-Amp Surge)

XSBI500 big
Go to item page Right Arrow Icon of Right Arrow

500-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 700-Amp Surge)

• 500-Amp continuous / 700-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $9.00 in rewards to spend later

8
List price $109.99
-18% $89.99

In stock

• 500-Amp continuous / 700-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

NVX XSBI200

200-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 300-Amp Surge)

XSBI200 big
Go to item page Right Arrow Icon of Right Arrow

200-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 300-Amp Surge)

• 200-Amp continuous / 300-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

shipping truck icon Free shipping in USA. Provide zip for delivery date.
6
List price $79.99
-38% $49.99

In stock

Used from: $45.99

• 200-Amp continuous / 300-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

Stinger SGP35

500 Amp Relay and Isolator

SGP35 big
Go to item page Right Arrow Icon of Right Arrow

500 Amp Relay and Isolator

• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Ideal for 2nd Audio Battery Isolation from Vehicle Systems
• 500A Constant/ 900A Peak

shipping truck icon Free shipping in USA. Provide zip for delivery date.
1
List price $379.00
-69% $117.99

In stock

• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Ideal for 2nd Audio Battery Isolation from Vehicle Systems
• 500A Constant/ 900A Peak

Limitless Lithium LL-IR500A

500A Battery Isolator and Relay

LL-IR500A big
Go to item page Right Arrow Icon of Right Arrow

500A Battery Isolator and Relay

• 500-amp Relay and Battery Isolator
• High current isolation relay designed for adding a secondary battery
• Prevents primary battery discharge when the vehicle engine is off
• Maximum Contact Rating: 500 amps
• Mechanical Life Cycle: 100000

shipping truck icon Free shipping in USA. Provide zip for delivery date.
$79.00

In stock

Only 1 Left!

• 500-amp Relay and Battery Isolator
• High current isolation relay designed for adding a secondary battery
• Prevents primary battery discharge when the vehicle engine is off
• Maximum Contact Rating: 500 amps
• Mechanical Life Cycle: 100000

NVX BIR200

200-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 300-Amp Surge)

BIR200 big
Go to item page Right Arrow Icon of Right Arrow

200-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 300-Amp Surge)

• 200-Amp continuous / 300-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16V DC operating range

shipping truck icon Free shipping in USA. Provide zip for delivery date.
17
List price $59.99
-17% $49.99

In stock

Used from: $29.99 Like New from: $42.49

• 200-Amp continuous / 300-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16V DC operating range

The Install Bay IB500

500 Amp Battery Isolator and Relay

IB500 big
Go to item page Right Arrow Icon of Right Arrow

500 Amp Battery Isolator and Relay

• Battery Isolator and Relay
• 500 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $13.40 in rewards to spend later

39
List price $148.99
-10% $133.99

In stock

Only 3 Left!

• Battery Isolator and Relay
• 500 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

Stinger SGP32

200 Amp High Current Power Relay Battery Isolator

SGP32 big
Go to item page Right Arrow Icon of Right Arrow

200 Amp High Current Power Relay Battery Isolator

• 200 amp Battery Isolator and Relay
• Prevents primary battery discharge
• Maximum current transfer
• Extends battery life
• Universal 12V Applications

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $10.90 in rewards to spend later

8
List price $229.00
-52% $108.99

In stock

• 200 amp Battery Isolator and Relay
• Prevents primary battery discharge
• Maximum current transfer
• Extends battery life
• Universal 12V Applications

NVX BIR200 (Open Box, Good)

200 Amp Relay Isolator (BIR200)

BIR200 big
Go to item page Right Arrow Icon of Right Arrow

200 Amp Relay Isolator (BIR200)

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $59.99
-50% $29.99

In stock

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

NVX BIR80

80-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 150-Amp Surge)

BIR80 big
Go to item page Right Arrow Icon of Right Arrow

80-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 150-Amp Surge)

• 80-Amp continuous / 150-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

shipping truck icon Free shipping in USA. Provide zip for delivery date.
10
List price $19.99
-20% $15.99

In stock

Like New from: $13.59

• 80-Amp continuous / 150-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

NVX BIR500 (Open Box, Great)

500 Amp Relay Isolator (BIR500)

BIR500 big
Go to item page Right Arrow Icon of Right Arrow

500 Amp Relay Isolator (BIR500)

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $89.99
-38% $55.99

In stock

Only 1 Left!

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

Stinger SGP38

80 amp Battery Isolator and Relay

SGP38 big
Go to item page Right Arrow Icon of Right Arrow

80 amp Battery Isolator and Relay

• 80 amp Battery Isolator and Relay
• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Universal 12V Applications
• Extends Battery Life
• Water Resistant Black Phenolic Plastic
• 100,000 Mechanical Cycle Life

shipping truck icon Free shipping in USA. Provide zip for delivery date.
5
List price $69.00
-54% $31.99

In stock

• 80 amp Battery Isolator and Relay
• Prevents Primary Battery Discharge
• Maximum Current Transfer
• Universal 12V Applications
• Extends Battery Life
• Water Resistant Black Phenolic Plastic
• 100,000 Mechanical Cycle Life

NVX XSBI80

80-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 150-Amp Surge)

XSBI80 big
Go to item page Right Arrow Icon of Right Arrow

80-Amp Microprocessor-Controlled Dual Sensing Smart Battery Isolator and Relay (Handles up to 150-Amp Surge)

• 80-Amp continuous / 150-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

shipping truck icon Free shipping in USA. Provide zip for delivery date.
2
List price $49.99
-50% $24.99

In stock

Used from: $17.49

• 80-Amp continuous / 150-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16.5V DC operating range

The Install Bay IB200

200 Amp Battery Isolator and Relay

IB200 big
Go to item page Right Arrow Icon of Right Arrow

200 Amp Battery Isolator and Relay

• Battery Isolator and Relay
• 200 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $11.40 in rewards to spend later

14
List price $126.99
-10% $113.99

In stock

Only 2 Left!

• Battery Isolator and Relay
• 200 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

Crux REL-SOC

Relay Socket with Leads

REL-SOC big
Go to item page Right Arrow Icon of Right Arrow

Relay Socket with Leads

• Relay Socket with Leads
• Color coded wires for easy connection
• Easy to install, no cutting or splicing required

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $3.36
-36% $2.16

In stock

• Relay Socket with Leads
• Color coded wires for easy connection
• Easy to install, no cutting or splicing required

The Install Bay IB80

80 Amp Battery Isolator and Relay

IB80 big
Go to item page Right Arrow Icon of Right Arrow

80 Amp Battery Isolator and Relay

• Battery Isolator and Relay
• 80 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

shipping truck icon Free shipping in USA. Provide zip for delivery date.
4
List price $32.99
-12% $28.99

Available

Ships in 10-14 days

• Battery Isolator and Relay
• 80 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

NVX BIR500 (Open Box, Good)

500 Amp Relay Isolator (BIR500)

BIR500 big
Go to item page Right Arrow Icon of Right Arrow

500 Amp Relay Isolator (BIR500)

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

shipping truck icon Free shipping in USA. Provide zip for delivery date.
1
List price $89.99
$85.99

In stock

Only 3 Left!

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

MB Quart GMR-RB4

Universal 4 Circuit Add-on Relay Bank for GMR7V1 Source Unit

GMR-RB4 big
Go to item page Right Arrow Icon of Right Arrow

Universal 4 Circuit Add-on Relay Bank for GMR7V1 Source Unit

• Universal 4 circuit relay bank
• Plug and play connection
• Control any switchable 12V accessory
• LED indicates a blown fuse

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $15.00 in rewards to spend later

List price $159.99
-6% $149.99

Available

Ships in 10-14 days

• Universal 4 circuit relay bank
• Plug and play connection
• Control any switchable 12V accessory
• LED indicates a blown fuse

NVX XSBI200 (Open Box, Great)

Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

XSBI200 big
Go to item page Right Arrow Icon of Right Arrow

Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $79.99
-38% $49.99

In stock

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

NVX XSBI200 (Open Box, Good)

Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

XSBI200 big
Go to item page Right Arrow Icon of Right Arrow

Microprocessor-Controlled 200 Amp, Dual Sensing Smart Relay Battery Isolator

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

shipping truck icon Free shipping in USA. Provide zip for delivery date.
List price $79.99
-43% $45.99

In stock

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

Items per page: 20

    Clear all

    FAQ Frequently asked questions in Car Audio & Electronics


    Car Audio and Electronics Frequently Asked Questions (FAQ)
    A car audio system comprises several essential components. First, you have the head unit, which acts as the system's control center, responsible for audio input and control. Then, there are the speakers, including tweeters, midrange, and subwoofers, which reproduce different audio frequencies. Amplifiers boost the audio signal, providing more power to the speakers. A crucial component is the wiring and connectors, ensuring proper connectivity. Additionally, some systems include equalizers and digital signal processors (DSPs) for fine-tuning sound quality. Understanding these components is fundamental to upgrading or troubleshooting your car audio and electronics.
    Improving sound quality in your car audio and electronics system involves various steps. Start by upgrading your speakers to high-quality aftermarket ones designed for better sound reproduction. Amplifiers can provide more power to your speakers, resulting in clearer and louder sound. Adding sound deadening materials, such as Dynamat, can reduce vibrations and road noise, further enhancing audio clarity. Fine-tuning your system with an equalizer or DSP allows you to adjust frequencies to your liking. These steps, combined with proper installation, can significantly enhance your car audio and electronics experience.
    Aftermarket upgrades in car audio and electronics can be highly beneficial. They allow you to customize your system to meet your specific preferences and needs. Aftermarket speakers, amplifiers, and head units often provide superior sound quality and features compared to factory-installed systems. Upgrades like subwoofers can deliver deep, powerful bass that factory systems might lack. Additionally, modern head units offer advanced connectivity options, such as Apple CarPlay and Android Auto, for seamless smartphone integration. While aftermarket upgrades may require an initial investment, the enhanced audio quality and features they provide can significantly improve your overall driving experience, making them well worth considering.
    Troubleshooting common issues in car audio and electronics systems involves systematic steps. If you encounter problems like distorted audio or no sound, begin by checking power connections, including the battery, fuses, and ground wires, to ensure they are secure and free from corrosion. Inspect speaker wires for shorts or loose connections. If your head unit isn't working, test it by connecting it directly to the battery to see if it powers on. If not, the head unit may need replacement or repair. Ensure that amplifiers receive a proper signal from the head unit and inspect their fuses and wiring connections. Thorough troubleshooting can help identify and resolve common issues in car audio and electronics systems.
    Safety is paramount when working with car audio and electronics upgrades. Always disconnect the vehicle's battery to prevent electrical accidents or short circuits. When drilling or cutting, be cautious of wiring and fuel lines behind panels. Follow manufacturer instructions and wiring diagrams meticulously to avoid damage or incorrect connections. Use the right tools, such as crimping tools and multimeters, to ensure secure and accurate installations. If you're unsure about any aspect of the installation, seek professional help. Additionally, avoid working on your vehicle's electronics during adverse weather conditions, and wear appropriate safety gear, including gloves and safety glasses. Prioritizing safety during installations will help prevent accidents and ensure the longevity of your car audio and electronics upgrades.

    All About

    Car Audio & Electronics

    Expert Insights into Car Audio and Electronics

    Dive into the world of car audio and electronics, exploring a range of categories and their subcategories. Understand the features, benefits, and latest advancements in each segment.

    Car Stereos

    The centerpiece of any car audio system, car stereos range from basic models to high-end units with advanced features like touchscreen displays, smartphone integration, and GPS navigation. The right car stereo enhances your music listening experience and adds functionality to your vehicle.

    • Factory Stereo Upgrades: Upgrade your car's factory stereo for better sound quality and additional features without altering the original look of your dashboard.
    • Apple CarPlay Stereos: Integrate your iPhone with your car stereo for seamless access to music, maps, and apps through a user-friendly interface.
    • Android Auto Car Stereos: Connect your Android phone for hands-free control of music, navigation, and messaging while driving.
    • Apple, Android and Smartphone Integration: Explore options for integrating various smartphones with your car stereo for enhanced connectivity and convenience.

    Car Amplifiers

    Car amplifiers power your speakers and subwoofers, ensuring clear, powerful sound even at high volumes. They come in various types, including mono, multi-channel, and class D amplifiers, each offering unique benefits for different audio setups.

    • Equalizers & Processors: Fine-tune your car audio with equalizers and processors, achieving the perfect balance of bass, treble, and mid-range frequencies.
    • Digital Sound Processors (DSP): Advanced DSPs allow for sophisticated audio adjustments and customization, elevating the sound quality of your car audio system.

    Car Subwoofers

    Subwoofers are essential for reproducing deep bass and adding depth to your car audio. They come in various sizes and styles, allowing you to choose the perfect match for your car and music preferences.

    Car Speakers

    Speakers are the final link in your car audio chain, responsible for delivering clear and detailed sound. From coaxial to component speakers, there's a variety to suit every audio system and preference.

    Car Audio Installation Parts & Accessories

    Proper installation and accessories are crucial for optimal performance of your car audio system. This category includes everything from wiring kits to sound dampening materials.

    Video, GPS & Safety

    Modern car audio systems often include video and GPS features for enhanced entertainment and navigation. Safety accessories like rearview cameras add an extra layer of security.

    Marine & Boat Audio

    Marine audio systems are built to withstand harsh environments while providing high-quality sound on the water. These systems include weather-resistant speakers, amplifiers, and head units.

    • Marine Tower Speakers: High-performance speakers designed for mounting on boats, providing clear sound across the water.

    UTV, ATV & Powersports Audio

    Audio systems for off-road and powersports vehicles are designed to be rugged and weather-resistant, delivering great sound in challenging outdoor conditions.

    Motorcycle & Harley-Davidson Audio

    Motorcycle audio systems, especially for Harley-Davidson models, are tailored to deliver clear sound at high speeds and in open environments.

    • Harley-Davidson Stereos: Stereos specifically designed for Harley-Davidson bikes, combining durability with high-quality audio.
    • Harley-Davidson Audio Packages: Complete audio packages for Harley-Davidson motorcycles, including speakers, amplifiers, and installation accessories.
    • Harley-Davidson Speakers: Speakers engineered for the unique acoustic environment of Harley-Davidson motorcycles.
    • Motorcycle Speakers: A range of speakers designed for various motorcycle models, offering clear sound in an open-air environment.
    • Motorcycle Handlebar Speakers: Compact speakers that can be mounted on motorcycle handlebars, perfect for riders who want music on the go.
    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
    Vehicle
    Store
    Delete

    2016 Audi S6

    1985 Ford Thunderbird

    2000 Dodge Caravan

    2012 Lexus LS460

    1987 Buick Skylark

    2011 Dodge Challenger

    2016 Audi RS7

    2000 Mercury Sable

    2001 GMC Savana

    2000 Chrysler Cirrus

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    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
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    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.