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1998 Sidekick
Speakers guaranteed to fit your vehicle.
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Products in these categories contain items that carry a guarantee to fit your Suzuki Sidekick (change vehicle)
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All Hifonics Car Speakers

Hifonics All Car Speakers deliver consistent, superior sound across all models.

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Hifonics 6.5" Speakers

Hifonics 6.5" Speakers feature advanced technology for crystal-clear sound.

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Hifonics 6x9" Speakers

Hifonics 6x9" Speakers provide expansive sound coverage with deep bass and crisp highs.

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Hifonics 4" Speakers

Hifonics 4" Speakers offer a perfect blend of compact size and powerful performance.

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Hifonics Speaker Packages & Bundles

Upgrade your audio with Hifonics Car Speaker Packages & Bundles.

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Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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Hifonics ZS4CX

350W Peak (60W RMS) 4" Zeus Series 2-way 4-ohm Coaxial Car Speakers

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Hifonics ZS4CX

350W Peak (60W RMS) 4" Zeus Series 2-way 4-ohm Coaxial Car Speakers

• 175 watts Peak Each, 30 watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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Save $3 on install kits for this speaker

found car based on your search
Fits multiple locations in your Sidekick
  • Dash Corner
  • Far-Rear Side Panels
5
$22.99 /pair

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Hifonics HCC4CX

150W Peak (80W RMS) 4" Colossus Classic Series 2 Way Coaxial 4-ohm Speakers

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Hifonics HCC4CX

150W Peak (80W RMS) 4" Colossus Classic Series 2 Way Coaxial 4-ohm Speakers

• 75 watts Peak Each, 40 watts RMS Each
• 1" Aluminum Dome Tweeters
• Woven Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Free Speaker Accessory at Checkout!
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Save $9 on install kits for this speaker

found car based on your search
Fits multiple locations in your Sidekick
  • Dash Corner
  • Far-Rear Side Panels
$39.99 /pair

In stock

Add to Cart
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    All About

    Hifonics Car Speakers
    Hifonics car speakers are designed to deliver rich, full sound in the challenging environment of a car without breaking the bank. Hifonics has a quality speaker in every common size, making it easy to find Hifonics car speakers that fit your car. Hifonics speakers, like the Atlas and Hercules series, are available in component systems as well as coaxial speakers, enabling them to work well in virtually any environment.

    The Hifonics Atlas series will impress even the most skeptical listener. These affordable speakers produce crisply defined treble and bold, powerful sound. The stylish Atlas speakers deliver fantastic sound quality and beautiful highs thanks to their light weight injection molded polypropylene cones and silk dome tweeters.

    Hifonics car speakers take advantage of quality engineering for precise cone travel and solid power handling for their price. From 5" x 7" and 6" x 9" to 5.25" to 6.75" speaker configurations, we have every Hifonics speaker to help you create the best sound system around at Sonic Electronix.
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    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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    Vehicle
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    2003 Saturn Ion-3

    2015 Audi S6

    1998 Suzuki Sidekick

    2019 Ford Escape

    2003 Audi A4

    1983 Ford Thunderbird

    2006 Mazda RX-8

    1997 Lexus LS400

    1988 Isuzu Impulse

    1986 Isuzu Trooper

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    Back

    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.

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