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2003 Mazda 6

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 2003 Mazda 6

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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Rockford Fosgate P2P3G-12

Mesh Grille for Rockford Fosgate 12" Punch P2 and P3 Subwoofers

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Mesh Grille for Rockford Fosgate 12" Punch P2 and P3 Subwoofers

• 12" Subwoofer Grille for Rockford Fosgate P2,P3, and P3 Shallow
• Black Gloss Finish
• Mesh Design for Maximum Protection

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$34.99

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• 12" Subwoofer Grille for Rockford Fosgate P2,P3, and P3 Shallow
• Black Gloss Finish
• Mesh Design for Maximum Protection

Limited time!

NVX NDA6004

1200W Peak (600W RMS) Class D N-Series 4-Channel Amplifier

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1200W Peak (600W RMS) Class D N-Series 4-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Save 30% off an NVX XKIT44 Amp Kit at Checkout!
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NVX XKIT44

$119.99

$83.99

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NVX XKIT44

Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

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Full Spec 4 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1500 Watts

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1500 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 4-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 100 amp fuse
• CEA-2015 and BC5W2 Compliant

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Available Offers (4) for NVX XKIT44
FREE NVX Amp Kit at Checkout!
Save 30% off an NVX XKIT44 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT44 Amp Kit! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! No code needed — discount applies automatically at checkout.
15% off an NVX XCAP1F w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP1F Capacitor! No code needed — discount applies automatically at checkout.
Used from: $90.99

i-Beam TE-360-3D

Full-Car Coverage Camera and DVR System w/ 3D View and Backup Camera Features

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Full-Car Coverage Camera and DVR System w/ 3D View and Backup Camera Features

• 360 Degree Camera System
• Backup Camera Included
• DVR Records from All Four Cameras
• 3d Overhead View Available

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List price $1496.00
-20% $1,199.99

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• 360 Degree Camera System
• Backup Camera Included
• DVR Records from All Four Cameras
• 3d Overhead View Available

Metra 82-6900

1.5" Spacer Ring for 6x9" Speakers

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1.5" Spacer Ring for 6x9" Speakers

• 6" x 9" Universal Speaker Spacers / Depth Extenders
• Adds 1-1/2" depth to speakers
• Items that make the installer's Life easier
• Trimrings and Trimplates
• Speaker Grills
• Speaker Adapter plates

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• 6" x 9" Universal Speaker Spacers / Depth Extenders
• Adds 1-1/2" depth to speakers
• Items that make the installer's Life easier
• Trimrings and Trimplates
• Speaker Grills
• Speaker Adapter plates

Viper 5308V

2-Way Remote Start Keyless Entry System with 4-Button Transmitter

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2-Way Remote Start Keyless Entry System with 4-Button Transmitter

• 2-Way 5-Button Remote Car Starter
• With 4-Button Transmitter
• 1320 feet Range
• Antenna With Integrated Valet Switch & LED
• Built-in security features

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List price $379.99
-16% $319.99

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• 2-Way 5-Button Remote Car Starter
• With 4-Button Transmitter
• 1320 feet Range
• Antenna With Integrated Valet Switch & LED
• Built-in security features

Sundown Audio 1/0BLK

1/0-Gauge Heat Shrink for Cable Crimp Ends (Black, Pack of 10)

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1/0-Gauge Heat Shrink for Cable Crimp Ends (Black, Pack of 10)

• 10-pack 1/0-gauge Heat Shrink
• Protect your cable crimp ends with style
• Color: Black

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List price $7.19
-17% $5.99

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• 10-pack 1/0-gauge Heat Shrink
• Protect your cable crimp ends with style
• Color: Black

Single 12" Vented MDF Subwoofer Enclosure (Belva 1SV12B)

12-inch Vented Car Sub Box Made with 3/4" MDF and lined w/ Polyfil (1.8 cu ft airspace 1SV12B)

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12-inch Vented Car Sub Box Made with 3/4" MDF and lined w/ Polyfil (1.8 cu ft airspace 1SV12B)

• Single 12" Vented MDF Enclosure
• Holds one 12" subwoofer
• 3/4 MDF (Medium Density Fiberboard) Construction
• Durable black carpeting
• Gold Terminals
• Internal Box Volume: 1.8 cubic ft.

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-17% $79.99

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Crimestopper LP-FRAME-BLK

License Plate Frame for CAM-300 and CAM-400 Backup Camera (Black)

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License Plate Frame for CAM-300 and CAM-400 Backup Camera (Black)

• Full Frame License Plate Frame Camera Bracket
• Works exclusively with CAM-300 and CAM-400
• Powder coated black metal finish
• Hidden wiring for easy installation

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List price $53.98
-33% $35.99

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• Full Frame License Plate Frame Camera Bracket
• Works exclusively with CAM-300 and CAM-400
• Powder coated black metal finish
• Hidden wiring for easy installation

Stinger SGP90200

200 Amp Circuit Breaker

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200 Amp Circuit Breaker

• 200 Amp Circuit Breaker
• Dust and splash proof
• Accepts 1/0 or 4 gauge wire
• Easy reset/disconnect
• Can act as a master disconnect for circuits

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List price $139.00
-50% $68.99

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• 200 Amp Circuit Breaker
• Dust and splash proof
• Accepts 1/0 or 4 gauge wire
• Easy reset/disconnect
• Can act as a master disconnect for circuits

NVX XQC302 Dual USB Quick Charge 3.0 Car Charger with LED Digital Voltmeter

QC 3.0 Fast Charging 12V/24V 36W Aluminum Waterproof Socket Power Output Adapter with On/Off Switch

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QC 3.0 Fast Charging 12V/24V 36W Aluminum Waterproof Socket Power Output Adapter with On/Off Switch

• Features Qualcomm Quick Charge 3.0
• Charges two devices simultaneously at 5V (2.1A)
• Charges devices 4x faster than conventional charging
• Compatible with most 12/24V charging systems
• Can be used nearly any application (Car/Truck/SUV/ATV/UTV/RV/Motorcycle/Marine)

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-67% $9.99

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• Features Qualcomm Quick Charge 3.0
• Charges two devices simultaneously at 5V (2.1A)
• Charges devices 4x faster than conventional charging
• Compatible with most 12/24V charging systems
• Can be used nearly any application (Car/Truck/SUV/ATV/UTV/RV/Motorcycle/Marine)

Directed 506T

Glass Break Audio Sensor

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Glass Break Audio Sensor

• Audio Sensor That Detects Attempts to Tamper with or Break Your Vehicle's Glass

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-33% $27.99

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• Audio Sensor That Detects Attempts to Tamper with or Break Your Vehicle's Glass

JL Audio VXi-HUB

JLid-Communication and Optical Audio Network Hub for JL Audio VXi Amplifiers

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JLid-Communication and Optical Audio Network Hub for JL Audio VXi Amplifiers

• JLid-communication and optical audio network hub
• Allows connection of multiple VXi Series amplifiers
• Connects to JLid-COMM port on VXi amps via Cat5 Ethernet cables
• Provides JLid-communication and optional S/PDIF

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$189.99

In stock

Only 2 Left!

• JLid-communication and optical audio network hub
• Allows connection of multiple VXi Series amplifiers
• Connects to JLid-COMM port on VXi amps via Cat5 Ethernet cables
• Provides JLid-communication and optional S/PDIF

Escort Smartcord USB

Radar Detector Power Cord w/ Two Amp USB Charging Port

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Radar Detector Power Cord w/ Two Amp USB Charging Port

• Direct wire power cord
• Designed for laser and Radar detectors
• Prevents interference with driving functions
• Compatible with Passport 8500, 9500iX, Solo S3 and S4 Models
• Installs in vehicle fuse panel

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$39.95

In stock

• Direct wire power cord
• Designed for laser and Radar detectors
• Prevents interference with driving functions
• Compatible with Passport 8500, 9500iX, Solo S3 and S4 Models
• Installs in vehicle fuse panel

NVX NDA12001

2400W Peak (1200W RMS) Class D N-Series Monoblock Car Amplifier with Bass Remote

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2400W Peak (1200W RMS) Class D N-Series Monoblock Car Amplifier with Bass Remote

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

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List price $239.99
-29% $169.99

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NVX XIV25

16.4 ft (5 meter) 2-Channel V-Series RCA Audio Interconnect Cable

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16.4 ft (5 meter) 2-Channel V-Series RCA Audio Interconnect Cable

• Shielded noise-rejecting Twisted-pair construction
• Heavy gauge OFC conductors ensure superior sound quality
• Split-tip Silver-Plated ends offer best in class signal transfer
• Molded ends equipped with colored channel identifiers

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• Shielded noise-rejecting Twisted-pair construction
• Heavy gauge OFC conductors ensure superior sound quality
• Split-tip Silver-Plated ends offer best in class signal transfer
• Molded ends equipped with colored channel identifiers

Metra 82-6902

Universal 1/2" Spacer for 6x9" Speakers

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Universal 1/2" Spacer for 6x9" Speakers

• Universal 1/2" Speaker Spacers
• Fits 6" x 9" Speakers
• OEM Automotive Grade ABS Plastic Construction
• Color: Black

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-10% $26.99

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• Universal 1/2" Speaker Spacers
• Fits 6" x 9" Speakers
• OEM Automotive Grade ABS Plastic Construction
• Color: Black

Belva BAK82

8 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 600 Watts - RED

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8 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 600 Watts - RED

• Complete 8 Gauge Amplifier Installation Kit
• For Amplifiers Up To 600 Watts RMS
• Premium (CCA) Copper Clad Aluminum
• Helical Twist 2-Channel RCA Cable
• ANL/Mini-ANL Fuse Holder with 60 amp fuse
• Complies to American Wire Gauge standards

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Universal Siren, works with any alarm system!

• Makes noise even if thief disconnects main car battery
• Key on/off feature to allow manual override

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• Makes noise even if thief disconnects main car battery
• Key on/off feature to allow manual override

Install Bay 89-00-9031 by Metra

12"x12"x1/8" ABS Plastic Sheet

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12"x12"x1/8" ABS Plastic Sheet

• 12" x 12" ABS Blank Panel Trim
• Customize The Blank Panel By Shaping It Or Cutting It Out
• Use It To Fill In Spaces And Gaps Or To Mount Accessories

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• 12" x 12" ABS Blank Panel Trim
• Customize The Blank Panel By Shaping It Or Cutting It Out
• Use It To Fill In Spaces And Gaps Or To Mount Accessories

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    FAQ for Universal-Fit Audio & Electronics in 2003 6

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2003 Mazda 6?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your 6.

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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.