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2004 Ford Thunderbird

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 Ford Thunderbird

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 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

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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

JBL Cruise 8MM Bolt Kit (PWSACCCRUISEM8)

8MM Bolt Kit for JBL Cruise Handlebar Speaker Pods

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8MM Bolt Kit for JBL Cruise Handlebar Speaker Pods

• Mounting hardware for JBL Cruise Handlebar Speakers
• Designed for select motorcycles for Vespa, Benelli, Piaggio, and Genuine motorcycles
• Designed for a majority of Asian scooter brands

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List price $29.95
-33% $19.95

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• Mounting hardware for JBL Cruise Handlebar Speakers
• Designed for select motorcycles for Vespa, Benelli, Piaggio, and Genuine motorcycles
• Designed for a majority of Asian scooter brands

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

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• Metal Mesh Grill with Alpine logo

JL Audio BassWedge CP110-W0v3

Single 10" BassWedge Loaded Ported Enclosure with Gray Carpet Finish

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Single 10" BassWedge Loaded Ported Enclosure with Gray Carpet Finish

• 600W Peak
• 300W RMS
• Top-Quality MDF Construction
• Durable Dark Gray Carpet Finish
• Five-Way Binding Post Connectors
• Embroidered JL Audio Logo

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$229.99

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Wet Sounds WW-8CH-LD

8-Channel Line Driver with Remote Controller and LED Signal

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8-Channel Line Driver with Remote Controller and LED Signal

• 8-Channel line driver with remote controller
• 4 pairs of adjustable outputs
• Remote level adjustments of Ch 5/6 and Ch 7/8
• Dual color LEDs for signal level monitoring and setup
• Sealed construction designed for marine applications

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$199.99

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• 8-Channel line driver with remote controller
• 4 pairs of adjustable outputs
• Remote level adjustments of Ch 5/6 and Ch 7/8
• Dual color LEDs for signal level monitoring and setup
• Sealed construction designed for marine applications

Cobra SC250R

3" Dual View 4K High-Definition Dash Camera with Bluetooth, WiFi and GPS

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3" Dual View 4K High-Definition Dash Camera with Bluetooth, WiFi and GPS

• 3" Dual View Dash Camera with 4K HD Video Resolution
• Includes a rear-view accessory camera
• Apple CarPlay and Android Auto support
• Loop-cycle recording
• Front Camera Resolution: 4096p x 2160p
• Rear Camera Resolution: 1920 x 1080p

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$259.95

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• 3" Dual View Dash Camera with 4K HD Video Resolution
• Includes a rear-view accessory camera
• Apple CarPlay and Android Auto support
• Loop-cycle recording
• Front Camera Resolution: 4096p x 2160p
• Rear Camera Resolution: 1920 x 1080p

Wet Sounds REVO 8 FA SW-W GRILLE V3

Grille for Wet Sounds 8" REVO 8 FA Marine Subwoofers (White)

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Grille for Wet Sounds 8" REVO 8 FA Marine Subwoofers (White)

• 8" Marine Subwoofer Grille
• White SW grille design
• REVO 8 FA marine subwoofers sold separately

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$49.99

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Ships in 10-14 days

• 8" Marine Subwoofer Grille
• White SW grille design
• REVO 8 FA marine subwoofers sold separately

NVX XPLOC2

2-Channel 300W Adjustable Line Output Converter with Remote Turn On

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2-Channel 300W Adjustable Line Output Converter with Remote Turn On

• 2-Channel Premium Adjustable Line Output Converter
• 3:1 Step Down With Adjustable Output
• 300w Total Maximum Input (150w Per Channel)
• Super Low Distortion

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• 2-Channel Premium Adjustable Line Output Converter
• 3:1 Step Down With Adjustable Output
• 300w Total Maximum Input (150w Per Channel)
• Super Low Distortion

NVX XKIT84

Full Spec 8 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 800 Watts

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Full Spec 8 Gauge 100% (OFC) Oxygen Free Copper Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 800 Watts

• Complete 8 Gauge Amplifier Installation Kit
• For Amplifiers Up To 800 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 60 amp fuse
• CEA-2015 and BC5W2 Compliant

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Available Offers (3) for NVX XKIT84
FREE NVX 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.
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.

NVX MVPA6

900W RMS Class D Marine-V Series 6-Channel Marine/Powersports/Motorcycle Amplifier

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900W RMS Class D Marine-V Series 6-Channel Marine/Powersports/Motorcycle Amplifier

• 100 watts x 6 channel @ 4 ohm
• 150 watts x 6 channel @ 2 ohm
• Bridged: 300 watts x 3 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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$271.99 with coupon | Price details
2026-06-30 23:59:00
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.

Atrend 12TKDV

Empty Dual 12" Truck Vented Subwoofer Enclosure

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Empty Dual 12" Truck Vented Subwoofer Enclosure

• 12" Dual Truck Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 0.69 cubic feet

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-29% $149.95

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Kenwood DRV-A310W

2" HD LCD Front Dash Camera with Wireless Link and GPS

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2" HD LCD Front Dash Camera with Wireless Link and GPS

• 3.7M and 2.0M Recording
• 2 Megapixel Recording (rear cam)
• 2" LCD Display (front cam only)
• Integrated GPS system
• IP67 waterproof rating (rear cam only)

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• 3.7M and 2.0M Recording
• 2 Megapixel Recording (rear cam)
• 2" LCD Display (front cam only)
• Integrated GPS system
• IP67 waterproof rating (rear cam only)

NVX MVPA4

1200W Peak (600W RMS) Class D Marine-V Series 4-Channel Marine/Powersports/Motorcycle Amplifier

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1200W Peak (600W RMS) Class D Marine-V Series 4-Channel Marine/Powersports/Motorcycle Amplifier

• 100 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

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Dads & Grads Sale! Save 15% at Checkout!
List price $383.99
-27% $279.99
$237.99 with coupon | Price details
2026-06-30 23:59:00
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.

2 Pack of 100 Amp Nickel-Plated ANL Fuse (Belva BANL100)

Two fuses per order. High quality 100 Amp ANL Fuses

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Two fuses per order. High quality 100 Amp ANL Fuses

• 100A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

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• 100A ANL Fuse
• 2 Pack
• Nickel Plated
• Resealable Polybag
• Heavy Duty Construction

Limited time!

Stinger SK101

300A 1/0-Gauge Amplifier Power Wiring Kit with Stinger SHD201 ANL Fuse Holder

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300A 1/0-Gauge Amplifier Power Wiring Kit with Stinger SHD201 ANL Fuse Holder

• 1/0 gauge Power Amplifier Installation Kit
• Designed specifically for car audio systems up to 4000 watts
Stinger SHD201 water-resistant ANL fuse holder included

15% off an NVX XCAP10H w/ Select Amp Kits
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• 1/0 gauge Power Amplifier Installation Kit
• Designed specifically for car audio systems up to 4000 watts
Stinger SHD201 water-resistant ANL fuse holder included

Belva BBTR1 Pioneer, Clarion and Jensen Navigation Video Bypass

Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Stereos

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Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Stereos

•Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Radios
• Auto Parking Brake Bypass Interface
• Simple 3-Wire Installation
• Will Work w/Future Software Updates

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•Video In Motion Bypass Module for select 2013-2017 Pioneer/Clarion/Jensen Radios
• Auto Parking Brake Bypass Interface
• Simple 3-Wire Installation
• Will Work w/Future Software Updates

NVX VADM1 v2 (VADM1v2)

600W RMS Class D V-Series Micro Monoblock Car/Marine/Powersports Amplifier with Bass Remote

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600W RMS Class D V-Series Micro Monoblock Car/Marine/Powersports Amplifier with Bass Remote

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

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List price $239.99
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$161.49 with coupon | Price details
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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.
Used from: $119.99

NVX XCAMLP

High Resolution License Plate Frame Backup Camera

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High Resolution License Plate Frame Backup Camera

• Universal Rear View Backup Camera
• Mounting Style: Full License Plate Frame
• Viewing Angle: 170 °
• Resolution: 720 x 480 
• Waterproof: Yes
• Night vision: LED's

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• Universal Rear View Backup Camera
• Mounting Style: Full License Plate Frame
• Viewing Angle: 170 °
• Resolution: 720 x 480 
• Waterproof: Yes
• Night vision: LED's

JL Audio XB-SPTM Side-Post Battery Terminal Adaptors

1 Pair Side-Post to Top-Mount Battery Terminal Adapters

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1 Pair Side-Post to Top-Mount Battery Terminal Adapters

• 1 Pair (1 negative, 1 positive) of. Side-Post to Top-Mount Battery Terminal Adapters
• Forged and machined brass construction
• Marine-grade, anti-corrosive Stannum plating

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• 1 Pair (1 negative, 1 positive) of. Side-Post to Top-Mount Battery Terminal Adapters
• Forged and machined brass construction
• Marine-grade, anti-corrosive Stannum plating

NVX XPLOC4

4-Channel 600W Adjustable Line Output Converter with Remote Turn On

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4-Channel 600W Adjustable Line Output Converter with Remote Turn On

• 4-Channel Premium Adjustable Line Output Converter
• 6:1 Step Down With Adjustable Output
• 600w Total Maximum Input (150w Per Channel)
• Super Low Distortion

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• 4-Channel Premium Adjustable Line Output Converter
• 6:1 Step Down With Adjustable Output
• 600w Total Maximum Input (150w Per Channel)
• Super Low Distortion

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    FAQ for Universal-Fit Audio & Electronics in 2004 Thunderbird

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

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

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    Identify your vehicle and submodel details
    • Owner's manual
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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.