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2004 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 2004 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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Limited time!

NVX VADM4 Version 2 (VADM4v2) (Open Box, Great)

500W RMS V-Series Micro Full-Range Class D 4-Channel Amplifier Car/Marine/Powersports Amplifier

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500W RMS V-Series Micro Full-Range Class D 4-Channel Amplifier Car/Marine/Powersports Amplifier

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

10% Off Open Box!
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List price $237.99
-43% $136.49
$122.84 with coupon | Price details

In stock

Only 1 Left!

NVX XSBI500 (Open Box, Good)

Microprocessor-Controlled 500 Amp, Dual Sensing Smart Relay Battery Isolator

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Microprocessor-Controlled 500 Amp, Dual Sensing Smart Relay Battery Isolator

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

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List price $99.99
-23% $76.88

In stock

Only 1 Left!

• 500 Amp Battery Isolator
• 500 Amps at 12V Continuous
• 700 Amps Surge
• Switching Power: 10 - 16 VDC

Limited time!

BOYO Vision VTSR220 (Open Box, Great)

Front and Rear Parking Assist System with 8 Parking Sensors (Black)

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Front and Rear Parking Assist System with 8 Parking Sensors (Black)

• Front and rear parking sensors with waterproof connectors
• Audible buzzer with volume adjustment
• Total Number of Sensors: 8
• Detection Distance: 1 feet to 5.9 feet

10% Off Open Box!
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List price $121.00
-51% $58.79
$52.91 with coupon | Price details

In stock

Only 1 Left!

• Front and rear parking sensors with waterproof connectors
• Audible buzzer with volume adjustment
• Total Number of Sensors: 8
• Detection Distance: 1 feet to 5.9 feet

Limited time!

NVX XUBT3 Universal Bluetooth Controller Knob (Open Box, Great)

Universal Bluetooth Audio Receiver & Volume/Playback Controller Knob for Cars, Trucks, Motorcycles, ATVs & Boats (X-Series)

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Universal Bluetooth Audio Receiver & Volume/Playback Controller Knob for Cars, Trucks, Motorcycles, ATVs & Boats (X-Series)

• iPhone, Android & Bluetooth Device Ready
• One Knob Controls it all - Track, Pause & Volume
• Flush in Dash or Under Dash Mounting options
• Add-on to any Radio or Device with AUX input

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List price $99.99
-58% $41.99
$37.79 with coupon | Price details

In stock

• iPhone, Android & Bluetooth Device Ready
• One Knob Controls it all - Track, Pause & Volume
• Flush in Dash or Under Dash Mounting options
• Add-on to any Radio or Device with AUX input

MTX AWBTC (Like New (Open Box))

Universal Bluetooth Receiver and Remote Control

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Universal Bluetooth Receiver and Remote Control

• Universal Bluetooth Receiver and Remote Control
• Replaces head unit and works with most aftermarket audio systems
• Provides wireless power, volume and tracking commands
• Surface mount, flush mount, and clamp mounting options

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List price $129.95
-22% $101.96

In stock

Only 1 Left!

• Universal Bluetooth Receiver and Remote Control
• Replaces head unit and works with most aftermarket audio systems
• Provides wireless power, volume and tracking commands
• Surface mount, flush mount, and clamp mounting options

Limited time!

NVX BIR200 (Open Box, Good)

200 Amp Relay Isolator (BIR200)

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200 Amp Relay Isolator (BIR200)

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

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List price $59.99
-50% $29.99
$26.99 with coupon | Price details

In stock

• 200 Amp Battery Isolator
• 200 Amps at 12V Continuous
• 300 Amps Surge
• Switching Power: 10 - 16 VDC

Limited time!

BOYO Vision VTW7010 Smartphone Monitor Integration (Open Box, Good)

Mirror Your Smartphone on 7" HD Digital Panel Back Up Monitor with Built-in Miracast

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Mirror Your Smartphone on 7" HD Digital Panel Back Up Monitor with Built-in Miracast

• Digital Panel Back Up Monitor with Built-in Miracast
• 7" HD Digital Panel
• Mirrors Smartphone Device to the Monitor
• Parking Guidelines
• Cell phone charge
• Built-in Speaker

10% Off Open Box!
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List price $269.00
-62% $101.99
$91.79 with coupon | Price details

In stock

Only 1 Left!

• Digital Panel Back Up Monitor with Built-in Miracast
• 7" HD Digital Panel
• Mirrors Smartphone Device to the Monitor
• Parking Guidelines
• Cell phone charge
• Built-in Speaker

NVX XKIT02 (Open Box, Great)

Full Spec 1/0 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 4000 Watts

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Full Spec 1/0 Gauge 100% (OFC) Oxygen Free Copper Complete 2-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 4000 Watts

• Complete 1/0 Gauge Amplifier Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• CEA-2015 and BC5W2 Compliant

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List price $227.99
-32% $155.99

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Only 2 Left!

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Available Offers (2) for NVX XKIT02 (Open Box, Great)
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10% Off Open Box! Save an Extra 10% on Open Box at Checkout!
List price $227.99
-32% $155.99
$140.39 with coupon | Price details
2026-06-17 04:00:00
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.

• Complete 1/0 Gauge Amplifier Installation Kit
• For Amplifiers Up To 4000 Watts RMS
• 100% (OFC) Oxygen Free Copper
• Dual Twisted Pair 2-Channel RCA Cable
• Tinned conductors for corrosion resistance
• Pre-terminated seamless power and ground ring terminals
• ANL/Mini-ANL Fuse Holder with 300 amp fuse
• CEA-2015 and BC5W2 Compliant

Limited time!

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

10% Off Open Box!
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$239.99
$215.99 with coupon | Price details

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

NVX SQW104 (Open Box, Great)

1200W Peak (600W RMS) 10" SQ-Series Dual 4-ohm Shallow-Mount Car Subwoofer

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1200W Peak (600W RMS) 10" SQ-Series Dual 4-ohm Shallow-Mount Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.23"
• Sensitivity: 83 dB

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List price $299.99
-42% $174.99

In stock

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.23"
• Sensitivity: 83 dB

Limited time!

Bazooka BTA6250D (Open Box, Good)

250W Peak (120W RMS) Loaded Single 6" Amplified Ported Subwoofer Bass Tube Enclosure with FAST Harnesses

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250W Peak (120W RMS) Loaded Single 6" Amplified Ported Subwoofer Bass Tube Enclosure with FAST Harnesses

• 6" Amplified Loaded Subwoofer System
• 120 watts RMS
• Built-In Class D Amplifier
• Speaker-Level Inputs
• RCBM-250D remote control sold separately

10% Off Open Box!
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List price $349.99
-34% $229.99
$206.99 with coupon | Price details

In stock

Only 3 Left!

Limited time!

JBL RBC Bass Knob (Open Box, Great)

Wired Bass Remote Controller for BassPro SL and BassLink SM Compact Subwoofer

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Wired Bass Remote Controller for BassPro SL and BassLink SM Compact Subwoofer

• Wired Bass Remote Controller
• For the BassPro SL and BassLink SM Compact Subwoofer
• Control the bass/subwoofer levels from the vehicle’s front seat

10% Off Open Box!
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List price $69.95
-40% $41.96
$37.76 with coupon | Price details

In stock

Only 1 Left!

• Wired Bass Remote Controller
• For the BassPro SL and BassLink SM Compact Subwoofer
• Control the bass/subwoofer levels from the vehicle’s front seat

Limited time!

Kicker 49L7X152RK (Open Box, Great)

15" SoloX Series Dual 2-ohm Recone Kit for 49L7X152 Subwoofer

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15" SoloX Series Dual 2-ohm Recone Kit for 49L7X152 Subwoofer

• 15" SoloX Series Dual 2-ohm Recone Kit
• Pre-assembled cone, surround, and voice coil
• Impedance: Dual 2-ohm
• Alignment shims are included for installation

10% Off Open Box!
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List price $279.99
-38% $174.99
$157.49 with coupon | Price details

In stock

Only 1 Left!

• 15" SoloX Series Dual 2-ohm Recone Kit
• Pre-assembled cone, surround, and voice coil
• Impedance: Dual 2-ohm
• Alignment shims are included for installation

Limited time!

Bazooka BTA6100 (Open Box, Great)

100W Peak Loaded Single 6.5" Amplified Ported Subwoofer Bass Tube Enclosure

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100W Peak Loaded Single 6.5" Amplified Ported Subwoofer Bass Tube Enclosure

• 6.5" Amplified Loaded Subwoofer System
• 100 watts Peak
• Built-in Class Monoblock Amplifier
• Speaker-Level Inputs
• RCBM-100 remote control sold separately

10% Off Open Box!
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List price $249.99
-40% $149.99
$134.99 with coupon | Price details

In stock

Only 2 Left!

• 6.5" Amplified Loaded Subwoofer System
• 100 watts Peak
• Built-in Class Monoblock Amplifier
• Speaker-Level Inputs
• RCBM-100 remote control sold separately

Limited time!

Bazooka BTA8250D (Open Box, Good)

250W Peak Loaded Single 8" Non-Amplified Ported Subwoofer Bass Tube Enclosure

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250W Peak Loaded Single 8" Non-Amplified Ported Subwoofer Bass Tube Enclosure

• 8" Amplified Loaded Subwoofer System
• 250 watts Peak
• Built-in Class D Monoblock Amplifier
• Speaker-Level Inputs
• RCBM-250D remote control sold separately

10% Off Open Box!
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List price $399.99
-38% $249.99
$224.99 with coupon | Price details

In stock

• 8" Amplified Loaded Subwoofer System
• 250 watts Peak
• Built-in Class D Monoblock Amplifier
• Speaker-Level Inputs
• RCBM-250D remote control sold separately

Limited time!

Rockford Fosgate Power T2 T2S2-16 (Open Box, Great)

5000W Peak (2500W RMS) 16" Power Series Single 2-ohm Car Subwoofer

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5000W Peak (2500W RMS) 16" Power Series Single 2-ohm Car Subwoofer

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Single 2 ohm
• Glass Fiber Cone
• Injection molded foam Surround
• Mount depth: 10.47"
• Sensitivity: 90 dB

10% Off Open Box!
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List price $1299.99
-30% $909.99
$818.99 with coupon | Price details

In stock

Only 3 Left!

• Peak Power: 5000 watts
• RMS Power: 2500 watts
• Impedance: Single 2 ohm
• Glass Fiber Cone
• Injection molded foam Surround
• Mount depth: 10.47"
• Sensitivity: 90 dB

NVX VPRO35TW (Open Box, Good)

240W Peak (120W RMS) 3.5" V-Series Pro Audio Super Slim Bullet Tweeters

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240W Peak (120W RMS) 3.5" V-Series Pro Audio Super Slim Bullet Tweeters

• 3.5" Pro Audio Bullet Tweeters
• 240 watts Peak Each
• 120 watts RMS Each
• 4 ohm Impedance

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List price $47.99
-63% $17.99

In stock

Only 1 Left!

• 3.5" Pro Audio Bullet Tweeters
• 240 watts Peak Each
• 120 watts RMS Each
• 4 ohm Impedance

Limited time!

Wet Sounds ZERO 10 ENC (Like New (Open Box))

Empty Single 10" Sealed Enclosure for ZERO 10 Subwoofers

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Empty Single 10" Sealed Enclosure for ZERO 10 Subwoofers

• 10" Single Sealed Truck Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Compatible with ZERO 10 subwoofers (Sold separately)

10% Off Open Box!
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List price $299.99
-15% $254.99
$229.49 with coupon | Price details

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Only 2 Left!

• 10" Single Sealed Truck Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Compatible with ZERO 10 subwoofers (Sold separately)

Limited time!

JL Audio VX1000/1i (Open Box, Great)

1000W RMS Class D VXi Series Monoblock Car Amplifier with Built-in DSP

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1000W RMS Class D VXi Series Monoblock Car Amplifier with Built-in DSP

• 600 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes integrated DSP

10% Off Open Box!
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List price $1449.99
-30% $1,014.99
$913.49 with coupon | Price details

In stock

Only 1 Left!

• 600 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier
• Includes integrated DSP

Limited time!

NVX VSLR39 (Open Box, Great)

39-Ohm Load Resistors for all makes and models 2005-2015 with OEM Sound Systems

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39-Ohm Load Resistors for all makes and models 2005-2015 with OEM Sound Systems

• 39 Ohm Load Resistors
• Prevents Audio Shutdown and Distortion
• Compatible with most devices with speaker-level inputs
• Sold as a pair

10% Off Open Box!
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List price $39.99
-74% $10.49
$9.44 with coupon | Price details

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Only 2 Left!

• 39 Ohm Load Resistors
• Prevents Audio Shutdown and Distortion
• Compatible with most devices with speaker-level inputs
• Sold as a pair

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    FAQ for Universal-Fit Audio & Electronics in 2004 Eclipse

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 2004 Mitsubishi Eclipse?

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

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    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
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    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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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.