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2003 Mitsubishi Eclipse

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 Mitsubishi Eclipse

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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Belva BPKGW122

600W Peak 12" Single 2-Ohm Car Audio Subwoofer

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600W Peak 12" Single 2-Ohm Car Audio Subwoofer

• 600 Watts Max
• Polypropylene Cone
• Durable Rubber Surround
• 1.5" black aluminum voice coil
• 37 oz. ferrite magnet motor structure

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List price $59.99
-17% $49.99

In stock

Used from: $34.99

Belva BSCT4 Tweeter (Sold Individually)

4-inch Pro Car Audio Tweeter

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4-inch Pro Car Audio Tweeter

• 4-inch Pro Car Audio Tweeter (sold individually)
• Peak: 200W
• 1.75" Voice Coil
• Impedance: 4 Ohm

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List price $49.99
-60% $19.99

In stock

Used from: $19.49

• 4-inch Pro Car Audio Tweeter (sold individually)
• Peak: 200W
• 1.75" Voice Coil
• Impedance: 4 Ohm

NVX - Worth the Envy - Direct to Consumer Car Audio

Belva BXA15001 (Open Box, Great)

1500W Peak BX-Series Class-AB Monoblock Car Amplifier with Bass Remote

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1500W Peak BX-Series Class-AB Monoblock Car Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• Total Peak Power: 1500 watts
• Class A/B 2 ohm Stable Monoblock

2+ offers available
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List price $149.95
-56% $65.99

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Available Offers (2) for Belva BXA15001 (Open Box, Great)
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10% Off Open Box! Save an Extra 10% on Open Box at Checkout!
List price $149.95
-56% $65.99
$59.39 with coupon | Price details
2026-06-28 04:00:00
Save 30% off an NVX XKIT82 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT82 Amp Kit! No code needed — discount applies automatically at checkout.
Limited time!

Single 10" Sealed MDF Subwoofer Enclosure (Belva MDFS10) (Open Box, Great)

10-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil (0.77 cu ft airspace 10SQTC)

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10-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil (0.77 cu ft airspace 10SQTC)

• 0.77 cu ft Sealed Enclosure
• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

10% Off Open Box!
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List price $99.99
-58% $41.99
$37.79 with coupon | Price details

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Only 1 Left!

• 0.77 cu ft Sealed Enclosure
• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

Limited time!

Belva BPKG10T (Open Box, Good)

600W MAX 10" Shallow-Mount Angled Amplified Loaded Subwoofer Enclosure

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600W MAX 10" Shallow-Mount Angled Amplified Loaded Subwoofer Enclosure

• 10" Amplified Loaded Subwoofer System
• 300 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

10% Off Open Box!
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2
List price $209.99
-62% $79.99
$71.99 with coupon | Price details

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Only 3 Left!

• 10" Amplified Loaded Subwoofer System
• 300 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Limited time!

Belva 1.0 Farad Capacitor (Open Box, Good)

1.0 Farad Capacitor with Digital Red Display

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1.0 Farad Capacitor with Digital Red Display

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

10% Off Open Box!
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1
List price $79.99
-63% $29.99
$26.99 with coupon | Price details

In stock

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

Belva BPKG10T (Open Box, Great)

600W MAX 10" Shallow-Mount Angled Amplified Loaded Subwoofer Enclosure

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600W MAX 10" Shallow-Mount Angled Amplified Loaded Subwoofer Enclosure

• 10" Amplified Loaded Subwoofer System
• 300 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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List price $209.99
-57% $89.99

In stock

Only 2 Left!

Belva BCC2218 (100-Pack)

22/18 Gauge Nylon Crimp Caps, 100/pack

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22/18 Gauge Nylon Crimp Caps, 100/pack

• 22/18 Gauge Nylon Crimp Cap
• Heat shrinkable Design
• Makes Crimping Wires Fast and Easy
• Offers a Solid Connection of Wires
• Gauge: 22/18
• Color: Clear
• Count: 25

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List price $31.96
-50% $15.96

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• 22/18 Gauge Nylon Crimp Cap
• Heat shrinkable Design
• Makes Crimping Wires Fast and Easy
• Offers a Solid Connection of Wires
• Gauge: 22/18
• Color: Clear
• Count: 25

2 Pack of 200 Amp Nickel-Plated ANL Fuse w/ ANL Fuse Holder

Two fuses + Fuse Holder per order. High quality 200 Amp ANL Fuses + ANL Fuse Holder w/ 1/0 or 4 Gauge In/Out

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Two fuses + Fuse Holder per order. High quality 200 Amp ANL Fuses + ANL Fuse Holder w/ 1/0 or 4 Gauge In/Out

• 200A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction
• ANL/Mini-ANL Fuse Holder
• One 1/0 - 4 Gauge Input
• One 1/0 - 4 Gauge Output
• Solid Brass And Satin Chrome Plated
• High-Temperature Polycarbonate Base And Cover

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List price $32.98
-49% $16.98

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• 200A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction
• ANL/Mini-ANL Fuse Holder
• One 1/0 - 4 Gauge Input
• One 1/0 - 4 Gauge Output
• Solid Brass And Satin Chrome Plated
• High-Temperature Polycarbonate Base And Cover

Limited time!

Belva 1.0 Farad Capacitor (Open Box, Great)

1.0 Farad Capacitor with Digital Red Display

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1.0 Farad Capacitor with Digital Red Display

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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List price $79.99
-56% $34.99
$31.49 with coupon | Price details

In stock

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

Limited time!
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4-inch Pro Car Audio Tweeter

• 4-inch Pro Car Audio Tweeter (sold individually)
• Peak: 200W
• 1.75" Voice Coil
• Impedance: 4 Ohm

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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List price $49.99
-61% $19.49
$17.54 with coupon | Price details

In stock

Only 1 Left!

• 4-inch Pro Car Audio Tweeter (sold individually)
• Peak: 200W
• 1.75" Voice Coil
• Impedance: 4 Ohm

Limited time!

Belva Universal Car Amplifier Remote Bass Level Control Knob (BARLC) (Open Box, Great)

Flush Mount & Universal via RCA. Works with any amp, controls your bass output

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Flush Mount & Universal via RCA. Works with any amp, controls your bass output

• RCA Remote Level Control Bass Knob
• Flush Mount Design
• Connection Type: RCA

10% Off Open Box!
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List price $14.99
-40% $8.99
$8.09 with coupon | Price details

In stock

Only 2 Left!

• RCA Remote Level Control Bass Knob
• Flush Mount Design
• Connection Type: RCA

Limited time!

Belva BXA15001 (Open Box, Good)

1500W Peak BX-Series Class-AB Monoblock Car Amplifier with Bass Remote

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1500W Peak BX-Series Class-AB Monoblock Car Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• Total Peak Power: 1500 watts
• Class A/B 2 ohm Stable Monoblock

Save 30% off an NVX XKIT82 Amp Kit at Checkout!
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Universal Icon Universal – fits most vehicles.

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1
List price $149.95
-60% $59.99

In stock

Only 1 Left!


Available Deal
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Eligible items

Shop items below for 30% off up to $100 discount on Save 30% off an NVX Amp Kit!

NVX XKIT82

$79.99

$55.99

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EXCLUSIVE

Belva BPKG112v2 (Open Box, Great)

Includes: 600W 12" Sub, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

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Includes: 600W 12" Sub, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

• Works with both Factory and Aftermarket Audio Systems
• Single 12" Belva Subwoofer
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

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List price $299.99
-58% $125.99

In stock

Only 1 Left!

• Works with both Factory and Aftermarket Audio Systems
• Single 12" Belva Subwoofer
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

Limited time!

Belva BAK02BL (Like New (Open Box))

1/0 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 2000 Watts - BLUE

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1/0 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 2000 Watts - BLUE

• 1/0 Gauge Amplifier Installation Kit
• For Amplifiers Up To 2000 Watts RMS
• Premium (CCA) Copper Clad Aluminum
• Helical Twist 2-Channel RCA Cable
• ANL Fuse Holder with 100 amp fuse
• Complies to American Wire Gauge standards

10% Off Open Box!
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Universal Icon Universal – fits most vehicles.

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1
List price $69.99
-33% $46.74
$42.07 with coupon | Price details

In stock

Only 1 Left!

• 1/0 Gauge Amplifier Installation Kit
• For Amplifiers Up To 2000 Watts RMS
• Premium (CCA) Copper Clad Aluminum
• Helical Twist 2-Channel RCA Cable
• ANL Fuse Holder with 100 amp fuse
• Complies to American Wire Gauge standards

Limited time!

Belva BASB26 (Open Box, Great)

26" 500W Weatherproof UTV/ATV/Powersports Bluetooth Soundbar with 6 Speakers

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26" 500W Weatherproof UTV/ATV/Powersports Bluetooth Soundbar with 6 Speakers

• Weatherproof IPX 5 soundbar
• Four 3" Full-Range Drivers
• Two 1" Horn Tweeters
• Built-in Class-D Amplifier

10% Off Open Box!
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List price $299.99
-65% $104.99
$94.49 with coupon | Price details

In stock

Only 3 Left!

• Weatherproof IPX 5 soundbar
• Four 3" Full-Range Drivers
• Two 1" Horn Tweeters
• Built-in Class-D Amplifier

Limited time!

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure (Open Box, Great)

1TRUCK12 - CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil

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1TRUCK12 - CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil

• 5/8" MDF (Medium Density Fiberboard)
• Perfect for Tight Spaces (trucks/hatchbacks)
• Fits Most 12" Subwoofers
• 0.75 CuFt
• fully carpeted
• Fully Caulked and Sealed Tight

10% Off Open Box!
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List price $95.99
-42% $55.99
$50.39 with coupon | Price details

In stock

• 5/8" MDF (Medium Density Fiberboard)
• Perfect for Tight Spaces (trucks/hatchbacks)
• Fits Most 12" Subwoofers
• 0.75 CuFt
• fully carpeted
• Fully Caulked and Sealed Tight

Limited time!

Belva BLPCAM2 (Open Box, Great)

License Plate Mounted Waterproof Rearview Backup Camera with Built in Night Vision

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License Plate Mounted Waterproof Rearview Backup Camera with Built in Night Vision

• Full License Plate Frame Rearview Back Up Camera
• Nightvision
• Resolution: 720 x 480
• Viewing Angle: 170°

10% Off Open Box!
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1
List price $99.99
-70% $29.99
$26.99 with coupon | Price details

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• Full License Plate Frame Rearview Back Up Camera
• Nightvision
• Resolution: 720 x 480
• Viewing Angle: 170°

Limited time!

Belva BSA10LED (Open Box, Good)

Universal RGB LED Light Ring with Remote for Most 10" Subwoofers

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Universal RGB LED Light Ring with Remote for Most 10" Subwoofers

• Universal 10" RGB LED subwoofer light ring
• Included wireless remote control
• Over 30 preset modes; adjustable brightness
• Lights change color/pattern to the music's beat
• Standard 12V input voltage
• Colors: Red, Green, and Blue

10% Off Open Box!
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List price $39.99
-73% $10.79
$9.71 with coupon | Price details

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• Universal 10" RGB LED subwoofer light ring
• Included wireless remote control
• Over 30 preset modes; adjustable brightness
• Lights change color/pattern to the music's beat
• Standard 12V input voltage
• Colors: Red, Green, and Blue

Limited time!

Belva BAK42 (Open Box, Great)

4 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1200 Watts - RED

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4 Gauge Premium (CCA) Copper Clad Aluminum Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1200 Watts - RED

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1200 Watts RMS
• Premium (CCA) Copper Clad Aluminum
• Helical Twist 2-Channel RCA Cable
• ANL/Mini-ANL Fuse Holder with 80 amp fuse
• Complies to American Wire Gauge standards

10% Off Open Box!
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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List price $59.99
-42% $34.99
$31.49 with coupon | Price details

In stock

Only 1 Left!

NVX - Worth the Envy - Direct to Consumer Car Audio

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    FAQ for Universal-Fit Audio & Electronics in 2003 Eclipse

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

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

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    • Owner's manual
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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
    • 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.