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2018 Mazda CX-3

Universal gear includes car amplifiers, subs, and other products that do not install in a specific location or require fitment to integrate with a vehicle.

Universal-Fit Audio for 2018 Mazda CX-3

When thinking of universal gear, we consider products like a car amp that gives more power to your speakers or subs, cell phone chargers, equalizers and sound processors, rear-seat entertainment and video monitors, as well as dash cameras.

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Diamond Audio DMDTAK

160W Peak (80W RMS) 3/4" DMD Series Silk Done Tweeter Add-On Kit with Crossover Networks

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160W Peak (80W RMS) 3/4" DMD Series Silk Done Tweeter Add-On Kit with Crossover Networks

• 3/4" Dome Silk DomeTweeters
• External 12dB/octave crossovers
• 80 watts Peak Each
• 40 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

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Fits the following location in your CX-3
  • Dash Corner
List price $89.99
$87.99 /pair

Available

Ships in 10-14 days

• 3/4" Dome Silk DomeTweeters
• External 12dB/octave crossovers
• 80 watts Peak Each
• 40 watts RMS Each
• 4 ohm Impedance

Diamond Audio VSP1SMB

300W Peak (150W RMS) 1" VSP Series 4-ohm Car Tweeters

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300W Peak (150W RMS) 1" VSP Series 4-ohm Car Tweeters

• 1" VSP Series Cone Tweeters
• 150 watts Peak Each
• 75 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

found car based on your search
Fits the following location in your CX-3
  • Dash Corner
$189.99 /pair

In stock.

• 1" VSP Series Cone Tweeters
• 150 watts Peak Each
• 75 watts RMS Each
• 4 ohm Impedance

Diamond Audio MRD752

0.75" Replacement Diaphragm for MO75T2 Tweeter

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0.75" Replacement Diaphragm for MO75T2 Tweeter

• 0.75" Replacement Diaphragm for MO75T2 Tweeter
• Specifically designed for MO75T2 (MO75TRK)
• Direct-fit design allows hassle-free installation
• Impedance: 2-ohm

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$44.99

Available

Ships in 10-14 days

• 0.75" Replacement Diaphragm for MO75T2 Tweeter
• Specifically designed for MO75T2 (MO75TRK)
• Direct-fit design allows hassle-free installation
• Impedance: 2-ohm

Diamond Audio DALEDLC

Digital LED Remote Controller via Phone App (Magic Lantern) for HXMF Series Speakers

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Digital LED Remote Controller via Phone App (Magic Lantern) for HXMF Series Speakers

• Digital LED Remote Controlled Via (Magic Lantern) Phone App
• Compatible with Diamond Audio HXMF Series speakers
• 8 outputs with Remote Trigger
• Change Speed, Strobe, and Various Other Lighting Feature Modes

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$79.99

In stock.

• Digital LED Remote Controlled Via (Magic Lantern) Phone App
• Compatible with Diamond Audio HXMF Series speakers
• 8 outputs with Remote Trigger
• Change Speed, Strobe, and Various Other Lighting Feature Modes

Diamond Audio M01SWT

200W Peak (100W RMS) 1" MotorSport Series 4-ohm Pro Audio Swivel Tweeters

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200W Peak (100W RMS) 1" MotorSport Series 4-ohm Pro Audio Swivel Tweeters

• 1" Pro-Audio Swivel Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

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$239.99

In stock.

• 1" Pro-Audio Swivel Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

Diamond Audio MICRO85U

1035W RMS Class D Micro8U Series 5-Channel Full Range Car Amplifier

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1035W RMS Class D Micro8U Series 5-Channel Full Range Car Amplifier

• + @ 4 ohm
• 85 watts x 1 channel + 375 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 1 channel @ 4 ohm + 375 watts x 1 channel @ 2 ohm
• Total RMS Power: 1035 watts
• Class D 2 ohm Stable 5-Channel-Channel Amplifier

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List price $719.99
-8% $659.99

In stock.

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Available Offers (2) for Diamond Audio MICRO85U
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT86 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT86 Amp Kit! No code needed — discount applies automatically at checkout.

Diamond Audio DES84

500W Peak (250W RMS) 8" DES Series Dual 4-ohm Car Subwoofer

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500W Peak (250W RMS) 8" DES Series Dual 4-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 82.1 dB

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$239.99

In stock

Used from: $239.99

Diamond Audio HX800.1D

800W RMS Class D Hex Series Monoblock Car Amplifier (with Bass Remote)

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800W RMS Class D Hex Series Monoblock Car Amplifier (with Bass Remote)

• 340 watts x 1 channel @ 4 ohm
• 560 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $569.99
$549.99

In stock.

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Available Offers (2) for Diamond Audio HX800.1D
FREE NVX Amp Kit at Checkout!
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.

Diamond Audio DES82

500W Peak (250W RMS) 8" DES Series Dual 2-ohm Car Subwoofer

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500W Peak (250W RMS) 8" DES Series Dual 2-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 2 ohm
• Sensitivity: 82 dB

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$239.99

In stock.

Used from: $167.99

Diamond Audio BTR2

Waterproof Hideaway Marine and Powersports Bluetooth Audio Receiver

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Waterproof Hideaway Marine and Powersports Bluetooth Audio Receiver

• Waterproof Hideaway Bluetooth Audio Receiver
• Bluetooth 5.0 technology
• Designed for marine and powersports vehicles

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$89.99

In stock.

• Waterproof Hideaway Bluetooth Audio Receiver
• Bluetooth 5.0 technology
• Designed for marine and powersports vehicles

Diamond Audio DES84 (Open Box, Great)

500W Peak (250W RMS) 8" DES Series Dual 4-ohm Car Subwoofer

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500W Peak (250W RMS) 8" DES Series Dual 4-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 82.1 dB

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$239.99

In stock

Only 1 Left!

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 4 ohm
• Sensitivity: 82.1 dB

Diamond Audio M1SRT

200W Peak (100W RMS) 1" MotorSport Series 4-ohm Pro Audio Short Horn Tweeters

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200W Peak (100W RMS) 1" MotorSport Series 4-ohm Pro Audio Short Horn Tweeters

• 1" Pro-Audio Short Horn Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

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$219.99

In stock.

• 1" Pro-Audio Short Horn Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

Diamond Audio MICRO4V2

600W RMS Class D MicroV2 Series 4-Channel Compact Amplifier with Bluetooth

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600W RMS Class D MicroV2 Series 4-Channel Compact Amplifier with Bluetooth

• 80 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

2+ offers available
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1
List price $499.99
-20% $399.99

In stock

Continue to cart

Available Offers (2) for Diamond Audio MICRO4V2
FREE Belva Amp Kit at Checkout!
Save 30% off an NVX XKIT84 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT84 Amp Kit! No code needed — discount applies automatically at checkout.

Diamond Audio AMP-BRACKET

Universal Underseat Amplifier Bracket for Jeep JK/JLU (Front Seats)

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Universal Underseat Amplifier Bracket for Jeep JK/JLU (Front Seats)

• Universal underseat amplifier bracket
• Designed for Jeep JL and JKU front seat configurations
• Includes nutserts and drill bit for easy installation

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$89.99

Available

Ships in 10-14 days

• Universal underseat amplifier bracket
• Designed for Jeep JL and JKU front seat configurations
• Includes nutserts and drill bit for easy installation

Diamond Audio DES82 (Open Box, Great)

500W Peak (250W RMS) 8" DES Series Dual 2-ohm Car Subwoofer

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500W Peak (250W RMS) 8" DES Series Dual 2-ohm Car Subwoofer

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 2 ohm
• Sensitivity: 82 dB

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Universal Icon Universal – fits most vehicles.

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List price $219.99
-24% $167.99

In stock

Only 2 Left!

• Peak Power: 500 watts
• RMS Power: 250 watts
• Fiber-Reinforced High Strength Paper Cone
• Impedance: Dual 2 ohm
• Sensitivity: 82 dB

Diamond Audio M075T

200W Peak (100W RMS) 1" Motorsport Series 4-ohm Pro Audio Short Horn Tweeters

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200W Peak (100W RMS) 1" Motorsport Series 4-ohm Pro Audio Short Horn Tweeters

• 1" Motorsport Series Pro-Audio Horn Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

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List price $279.99
$269.99

In stock.

• 1" Motorsport Series Pro-Audio Horn Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohm Impedance

Diamond Audio CL225S

4 Pack of Extruded Aluminum 2.25" Clamp Rings (Silver)

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4 Pack of Extruded Aluminum 2.25" Clamp Rings (Silver)

• Extruded aluminum
• UV resistant
• Color: Silver

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$69.99

In stock.

• Extruded aluminum
• UV resistant
• Color: Silver

Diamond Audio DES10G

Mesh Grille for Diamond Audio 10" DES Subwoofers (Black)

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Mesh Grille for Diamond Audio 10" DES Subwoofers (Black)

• 10" Subwoofer Steel Mesh Grille for DES Series Subwoofers
• Made from high-quality black steel mesh
• Fits between the surround and plastic concealing ring
• No screws, clamps or extra hardware needed

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$30.99

In stock.

• 10" Subwoofer Steel Mesh Grille for DES Series Subwoofers
• Made from high-quality black steel mesh
• Fits between the surround and plastic concealing ring
• No screws, clamps or extra hardware needed

Diamond Audio DARGB8A

RGB LED App Remote Controller with Remote Trigger for HXM Series Marine Speakers

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RGB LED App Remote Controller with Remote Trigger for HXM Series Marine Speakers

• RGB LED App Remote Controller
• Designed for HXM series marine speakers
• Change various lighting modes
• Control up to 8 outputs
• Use with EZ LED app available for iOS and Android

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$79.99

In stock.

• RGB LED App Remote Controller
• Designed for HXM series marine speakers
• Change various lighting modes
• Control up to 8 outputs
• Use with EZ LED app available for iOS and Android

Diamond Audio HXMRGBLC

RGB LED Remote Controller for HXM Series Marine Speakers

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RGB LED Remote Controller for HXM Series Marine Speakers

• RGB LED Remote Controller
• Designed for HXM series marine speakers
• Change various lighting modes
• Made with conformal coated PCB
• Change color, speed, strobe and other lighting modes

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$59.99

Available

Ships in 10-14 days

• RGB LED Remote Controller
• Designed for HXM series marine speakers
• Change various lighting modes
• Made with conformal coated PCB
• Change color, speed, strobe and other lighting modes

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    FAQ for Universal-Fit Audio & Electronics in 2018 CX-3

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2018 Mazda CX-3?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your CX-3.

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    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
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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
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.