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2018 Mazda 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 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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Alpine S2-S10TW

480W Peak (160W RMS) 1" S-Series 4-ohm Dome Tweeters

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480W Peak (160W RMS) 1" S-Series 4-ohm Dome Tweeters

• 1" S Series Tweeters
• 240 watts Peak Each
• 80 watts RMS Each
• 4 ohm Impedance

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Install kits available for most vehicles

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Fits select locations in your 3.
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List price $130.00
-15% $109.95 /pair

In stock

• 1" S Series Tweeters
• 240 watts Peak Each
• 80 watts RMS Each
• 4 ohm Impedance

Alpine KCX-CAM1

Composite RCA to Direct Camera Adaptor for Alpine Stereos

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Composite RCA to Direct Camera Adaptor for Alpine Stereos

• Composite RCA to direct camera adaptor
• Compatible with all Alpine stereos with direct camera input
• Ideal for adding any aftermarket camera
• Plug and play, no cutting or splicing required

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List price $20.00
$19.95

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• Composite RCA to direct camera adaptor
• Compatible with all Alpine stereos with direct camera input
• Ideal for adding any aftermarket camera
• Plug and play, no cutting or splicing required

Alpine RUE-4360

Wireless Audio Remote Control for Remote-Ready Alpine Stereos

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Wireless Audio Remote Control for Remote-Ready Alpine Stereos

• Wireless remote control for remote-ready Alpine stereos
• 20 soft push-buttons for variety of control functions
• Siri voice assistant activation on paired iPhone
• Voice recognition mode when paired with other smartphones
• Utilizes IR (Infrared) to send commands wirelessly

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List price $20.00
$19.95

In stock

• Wireless remote control for remote-ready Alpine stereos
• 20 soft push-buttons for variety of control functions
• Siri voice assistant activation on paired iPhone
• Voice recognition mode when paired with other smartphones
• Utilizes IR (Infrared) to send commands wirelessly

(2) Alpine W10S4 10" Bass Subwoofers + Belva 3000W Amplifier + 4 Gauge Amp Kit

750W Max 10" Single 4 ohm Car Subwoofer Package (Includes 2 Subs, Amp, and Amp Kit)

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750W Max 10" Single 4 ohm Car Subwoofer Package (Includes 2 Subs, Amp, and Amp Kit)

• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design

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List price $489.98
-26% $364.88

In stock

• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design

Alpine RUX-KNOB.2

Dash Mount Wired Bass Remote Controller for Alpine Amplifiers

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Dash Mount Wired Bass Remote Controller for Alpine Amplifiers

• Wired Bass Remote Controller
• Compatible with Alpine amplifiers
• Dash-mountable installation
• Variable Gain Control: 0 to -12 dB
• Color: Black

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List price $60.00
-17% $49.95

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Alpine DVR-C320R

Premium 1080p HD Night Vision Front/Rear Stealth Dash Camera Bundle with Wi-Fi and GPS Support

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Premium 1080p HD Night Vision Front/Rear Stealth Dash Camera Bundle with Wi-Fi and GPS Support

• Premium 1080p HD Night Vision Dash Camera Bundle
• Includes 1 front and 1 rear camera
• Records in full 1080p HD at 30 FPS with a140-degree field of view
• Continuous recording, incident recording, incident continuous recording for BCWS
• Manual recording and parking mode recording modes
• Front collision, lane departure and front car movement warning alerts
• Built-in WiFi and GPS
• Compatible with select Alpine receivers

Get a Free DVR-C320R with Select Alpine Stereos!
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List price $600.00
-17% $499.95

In stock


Available Deal
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Expires 2026-07-15 12:59:32

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Buy 1 Select Alpine Stereo and you’ll save 100% off up to $500 on Free DVR-C320R Dash Cam in your cart


Like New from: $424.96

• Premium 1080p HD Night Vision Dash Camera Bundle
• Includes 1 front and 1 rear camera
• Records in full 1080p HD at 30 FPS with a140-degree field of view
• Continuous recording, incident recording, incident continuous recording for BCWS
• Manual recording and parking mode recording modes
• Front collision, lane departure and front car movement warning alerts
• Built-in WiFi and GPS
• Compatible with select Alpine receivers

Alpine KTE-S65G

Mesh Grilles for Alpine 6.5" S-Series Speakers

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Mesh Grilles for Alpine 6.5" S-Series Speakers

• Metal Mesh Grill with Alpine logo

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List price $30.00
-20% $24.00

In stock

• Metal Mesh Grill with Alpine logo

Alpine KTX-SLEEVE

Single DIN Installation Sleeve for Alpine Halo9 and Halo11 Stereos

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Single DIN Installation Sleeve for Alpine Halo9 and Halo11 Stereos

• Single DIN stereo installation sleeve
• Fits Alpine Halo9 and Halo11 stereos
• Strong metal design for secure installation
• Bendable and locking tabs

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List price $25.00
-20% $20.00

In stock

Only 2 Left!

• Single DIN stereo installation sleeve
• Fits Alpine Halo9 and Halo11 stereos
• Strong metal design for secure installation
• Bendable and locking tabs

Alpine KTE-RGB-KO

Wired RGB Remote Controller for Alpine SPV-65RGB-CAN Speakers

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Wired RGB Remote Controller for Alpine SPV-65RGB-CAN Speakers

• Wired RGB lighting remote controller
• Designed for Alpine SPV-65RGB-CAN speakers
• 10 static colors and 4 dynamic modes
• Features memory hold function
• Made to fit UTV switch panel

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List price $170.00
-18% $139.95

In stock

• Wired RGB lighting remote controller
• Designed for Alpine SPV-65RGB-CAN speakers
• 10 static colors and 4 dynamic modes
• Features memory hold function
• Made to fit UTV switch panel

Limited time!

Alpine R2-W10D2

2250W Peak (750W RMS) 10" R2-Series Dual 2-ohm Car Subwoofer

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2250W Peak (750W RMS) 10" R2-Series Dual 2-ohm Car Subwoofer

• Peak Power: 2250 watts
• RMS Power: 750 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 5.92"
• Sensitivity: 82.3 dB

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List price $480.00
Save $160.05
-33% $319.95

In stock

Limited time!

Alpine R2-W10D4

2250W Peak (750W RMS) 10" R2-Series Dual 4-ohm Car Subwoofer

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2250W Peak (750W RMS) 10" R2-Series Dual 4-ohm Car Subwoofer

• Peak Power: 2250 watts
• RMS Power: 750 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 5.92"
• Sensitivity: 82.8 dB

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List price $480.00
Save $160.05
-33% $319.95

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Alpine S2-A120M

1200W Class D RMS S-Series Monoblock Car Amplifier

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1200W Class D RMS S-Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

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List price $660.00
-17% $549.95

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Available Offers (2) for Alpine S2-A120M
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.
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Alpine R2-W8D4

1000W Peak (350W RMS) 8" R2-Series Dual 4-ohm Car Subwoofer

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1000W Peak (350W RMS) 8" R2-Series Dual 4-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.56"
• Sensitivity: 83.7 dB

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List price $360.00
Save $120.05
-33% $239.95

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Alpine KTA-450 Power Pack

400W Peak (200W RMS) Class D Power Pack Series 4 Channel Car Amplifier

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400W Peak (200W RMS) Class D Power Pack Series 4 Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 45 watts x 4 channel @ 2 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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List price $360.00
-17% $299.95

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Used from: $188.96
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Alpine Status HDP-D90

720W RMS Class D Status Series 12-Channel Hi-Res DSP Amplifier

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720W RMS Class D Status Series 12-Channel Hi-Res DSP Amplifier

• 50 watts x 8 channel + 80 watts x 4 channel @ 4 ohm
• Total RMS Power: 720 watts
• Class D 4 ohm Stable 12-Channel Digital Sound Processor Amplifier
• High-resolution (Hi-Res) audio playback
• Selectable pre-configured sound system configurations
• Embedded RTA signals for customized sound tuning
• Bluetooth audio streaming with included external module

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List price $3480.00
Save 43%
-43% $1,999.95

In stock

• 50 watts x 8 channel + 80 watts x 4 channel @ 4 ohm
• Total RMS Power: 720 watts
• Class D 4 ohm Stable 12-Channel Digital Sound Processor Amplifier
• High-resolution (Hi-Res) audio playback
• Selectable pre-configured sound system configurations
• Embedded RTA signals for customized sound tuning
• Bluetooth audio streaming with included external module

Alpine KTX-LK8

Front and Rear Linking Bracket for 8" Alpine PrismaLink Subwoofer Enclosures

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Front and Rear Linking Bracket for 8" Alpine PrismaLink Subwoofer Enclosures

• Linking bracket for two or more 8" Alpine PrismaLink subwoofer enclosures
• Fits the S2-SB8 subwoofer enclosure
• Heavy-duty steel front link bracket and rear link bracing
• RGB wiring harness for lighting bars
• All hardware included

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List price $70.00
-14% $59.95

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Ships in 10-14 days

• Linking bracket for two or more 8" Alpine PrismaLink subwoofer enclosures
• Fits the S2-SB8 subwoofer enclosure
• Heavy-duty steel front link bracket and rear link bracing
• RGB wiring harness for lighting bars
• All hardware included

Limited time!

Alpine R2-W8D2

1000W Peak (350W RMS) 8" R2-Series Dual 2-ohm Car Subwoofer

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1000W Peak (350W RMS) 8" R2-Series Dual 2-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 350 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 4.56"
• Sensitivity: 83.6 dB

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List price $360.00
Save $120.05
-33% $239.95

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Alpine KAC-001

Universal External Accessory Control Module

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Universal External Accessory Control Module

• Universal Accessory Controller Module
• Designed to control external vehicle accessories
• Controls eight 12-volt accessories
• Pulsed, latched or momentary output configurations
• Connects to select Alpine stereos

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List price $290.00
-17% $239.95

In stock

Only 1 Left!

• Universal Accessory Controller Module
• Designed to control external vehicle accessories
• Controls eight 12-volt accessories
• Pulsed, latched or momentary output configurations
• Connects to select Alpine stereos

Alpine KTE-8G.3

Mesh Grille for Alpine 8" R2 and S2 Subwoofers (Black)

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Mesh Grille for Alpine 8" R2 and S2 Subwoofers (Black)

• 8" Subwoofer Mesh Grille for Alpine R2 and S2 Series Subwoofers
• Black metal mesh grille with powder-coat finish
• Fits R2-W8D4, R2-W8D2, S2-W8D4, and S2-W8D2
• Easy to install with Alpine's twist-lock EZ change grille system
• Sold individually (1 grille per pack) with instruction paper

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List price $50.00
-20% $39.95

In stock

• 8" Subwoofer Mesh Grille for Alpine R2 and S2 Series Subwoofers
• Black metal mesh grille with powder-coat finish
• Fits R2-W8D4, R2-W8D2, S2-W8D4, and S2-W8D2
• Easy to install with Alpine's twist-lock EZ change grille system
• Sold individually (1 grille per pack) with instruction paper

Alpine DVR-C310R

Premium 1080P Dash Camera Bundle (Front and Rear) with Impact Recording

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Premium 1080P Dash Camera Bundle (Front and Rear) with Impact Recording

• Premium front and rear dash camera bundle
• WDR (Wide Dynamic Range) recording
• Built-in Wi-Fi for strong and reliable connection
• Impact recording (moving and stationary)
• Mounting Style: Universal multiple mounting
• Viewing Angle: 144° (wide angle view)
• Resolution: 1080P (CMOS)

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List price $480.00
-17% $399.95

In stock

Only 3 Left!

• Premium front and rear dash camera bundle
• WDR (Wide Dynamic Range) recording
• Built-in Wi-Fi for strong and reliable connection
• Impact recording (moving and stationary)
• Mounting Style: Universal multiple mounting
• Viewing Angle: 144° (wide angle view)
• Resolution: 1080P (CMOS)

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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
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    • 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.