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2004 Cadillac DeVille

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 Cadillac DeVille

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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The Install Bay BB99

Bass Blocker / Non-Polar 10% Capacitor, Removes 400Hz @ 4 ohms or 200Hz @ 8 ohms

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Bass Blocker / Non-Polar 10% Capacitor, Removes 400Hz @ 4 ohms or 200Hz @ 8 ohms

• Metra Bass Blocker
• Non-Polar 10% Capacitor
• 4 Ohm: 400Hz
• 8 Ohm: 200Hz
• 100 Volts
• 99 uf
• White Heat Shrinked Capacitor
• Yellow Color Coded Silver Wire

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List price $11.99
-17% $9.99

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• Metra Bass Blocker
• Non-Polar 10% Capacitor
• 4 Ohm: 400Hz
• 8 Ohm: 200Hz
• 100 Volts
• 99 uf
• White Heat Shrinked Capacitor
• Yellow Color Coded Silver Wire

Install Bay IBHPLUG34

3/4in Hole Plug Flush Black 1in Head Diameter - 100PK

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3/4in Hole Plug Flush Black 1in Head Diameter - 100PK

• 3/4 Inch Hole Plug
• 100 Pack
• 1" Head Diameter

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List price $13.99
-14% $11.99

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• 3/4 Inch Hole Plug
• 100 Pack
• 1" Head Diameter

Install Bay 2" Square Terminal Cup (TCSBG2)

Square Binding Post with Gold Terminals for Subwoofer and Speaker Boxes

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Square Binding Post with Gold Terminals for Subwoofer and Speaker Boxes

• Universal square terminal cup for speaker and subwoofer boxes
• Gold-plated contacts improve signal transfer
• Installation is a breeze
• Rear connections secure with nuts
• Thumbscrew binding posts secure the connection

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-13% $6.99

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• Universal square terminal cup for speaker and subwoofer boxes
• Gold-plated contacts improve signal transfer
• Installation is a breeze
• Rear connections secure with nuts
• Thumbscrew binding posts secure the connection

Install Bay PSP3

3" x 12" ABS Port Tube Kit

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3" x 12" ABS Port Tube Kit

• Port Tube Kit for ported enclosures
• Perfect for custom or replacement ported enclosures
• 3"W x 12"L
• Durable ABS plastic construction

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List price $34.99
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• Port Tube Kit for ported enclosures
• Perfect for custom or replacement ported enclosures
• 3"W x 12"L
• Durable ABS plastic construction

Install Bay 604

Posi-Lock 20-22 AWG Locking T-Tap-Style Connectors (6-Pack)

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Posi-Lock 20-22 AWG Locking T-Tap-Style Connectors (6-Pack)

• Posi-Lock T-Tap Style Connectors
• Locking Twists Prevent Disconnection
• 20-22 AWG
• Package of 6

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List price $14.98
-33% $9.99

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Ships in 10-14 days

• Posi-Lock T-Tap Style Connectors
• Locking Twists Prevent Disconnection
• 20-22 AWG
• Package of 6

Install Bay IBSSWB

Panel Switch - 6-Pin Winch

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Panel Switch - 6-Pin Winch

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

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$13.99

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Ships in 10-14 days

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

Install Bay IBSIRENM

Universal Mini Piezo Siren for Car Alarm Systems (Sold Individually)

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Universal Mini Piezo Siren for Car Alarm Systems (Sold Individually)

• Universal mini piezoelectric siren
• Loud warning sound
• Compact and discreet sizing
• Easy 2-wire connection
• Impact-resistant housing
• Universal compatibility
• Sold individually

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List price $18.99
-11% $16.99

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Only 3 Left!

• Universal mini piezoelectric siren
• Loud warning sound
• Compact and discreet sizing
• Easy 2-wire connection
• Impact-resistant housing
• Universal compatibility
• Sold individually

Install Bay 3MRVBC

3M Red 22/18 Gauge Vinyl Butt Connectors

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3M Red 22/18 Gauge Vinyl Butt Connectors

• Butt Connectors
• 22/18 Gauge
• Color: Red
• Vinyl Insulated
• Makes Crimping Wires Fast and Easy
• Offers a Solid Connection of Wires

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-11% $16.99

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• Butt Connectors
• 22/18 Gauge
• Color: Red
• Vinyl Insulated
• Makes Crimping Wires Fast and Easy
• Offers a Solid Connection of Wires

The Install Bay MANL40

40 Amp Mini ANL Fuse (2 Pack)

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40 Amp Mini ANL Fuse (2 Pack)

• Mini ANL Fuse
• 40 Amp Rating
• Designed for Optimal Signal Transfer
• Package Includes 2 Fuses

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List price $4.99
-20% $3.99

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• Mini ANL Fuse
• 40 Amp Rating
• Designed for Optimal Signal Transfer
• Package Includes 2 Fuses

Install Bay 4 Gauge Amplifier Power Wiring Kit (AK4)

Amplifier Installation Power Kit with RCA Interconnect Cables and Fuse Holder with Fuse

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Amplifier Installation Power Kit with RCA Interconnect Cables and Fuse Holder with Fuse

• 4 Gauge Amplifier Installation Kit with RCA Interconnect Cables
• Perfect for 1600 Watts Amplifier Setup
• 17ft. Blue Power Cable
• 3ft. Black Ground Cable
• 17ft. Blue RCA Cable

2+ offers available
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List price $64.99
-11% $57.99

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Available Offers (2) for Install Bay 4 Gauge Amplifier Power Wiring Kit (AK4)
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.

Install Bay Manual Window Crank Retainer Clips (IBWC)

Manual Window Crank Retainer Clips - 10 pack

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Manual Window Crank Retainer Clips - 10 pack

• Manual Window Crank Retainer Clips
• Pack of 10

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List price $4.99
-20% $3.99

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• Manual Window Crank Retainer Clips
• Pack of 10

Install Bay IBR57

Dual USB Knockout Panel with Water Resistant Cover - can be surface or flush mounted

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Dual USB Knockout Panel with Water Resistant Cover - can be surface or flush mounted

• Dual USB water resistant knockout panel
• Mounts in dash
• Includes protective cover
• Uses a 1-1/8 inch mounting hole

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-12% $36.99

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• Dual USB water resistant knockout panel
• Mounts in dash
• Includes protective cover
• Uses a 1-1/8 inch mounting hole

Install Bay IBR92

USB Voltage Monitor LED Round - Water Resistant

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USB Voltage Monitor LED Round - Water Resistant

• In-Dash Knockout Panel
• Adds USB Ports
• Installs in Dash

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List price $43.99
-11% $38.99

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• In-Dash Knockout Panel
• Adds USB Ports
• Installs in Dash

Install Bay IBCPLR1

0 AWG to 4 AWG Nickel Plated Gauge Reducer

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0 AWG to 4 AWG Nickel Plated Gauge Reducer

• Wire Gauge Reducer
• 0 AWG to 4 AWG
• Nickel Plated
• Deep Wire Recesses
• Ultimate Power Delivery

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-15% $10.99

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• Wire Gauge Reducer
• 0 AWG to 4 AWG
• Nickel Plated
• Deep Wire Recesses
• Ultimate Power Delivery

Install Bay IBP13

HP13 LED SINGLE BEAM PAIR

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HP13 LED SINGLE BEAM PAIR

• Replacement LED headlight bulbs
• Good for tight applications
• Compact design doesn’t compromise performance
• Output of 6,000 lumens of cool white (6500K) illumination
• HP13 LED Single Beam
• Sold as a Pair

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List price $119.99
-63% $44.99

In stock

Only 2 Left!

• Replacement LED headlight bulbs
• Good for tight applications
• Compact design doesn’t compromise performance
• Output of 6,000 lumens of cool white (6500K) illumination
• HP13 LED Single Beam
• Sold as a Pair

Install Bay MC918-20 9-wire

20 ft. (6.1 meters) of Nine Conductor 18 AWG Twisted Multi-Use Cable

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20 ft. (6.1 meters) of Nine Conductor 18 AWG Twisted Multi-Use Cable

• 20ft. 9-Conductor 18 Gauge Twisted Multi-Use Wire
• Ideal for OEM Integration connections or 4-Channel speaker wiring
• Colored coded design eliminates confusion during installation

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-38% $29.99

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Only 1 Left!

• 20ft. 9-Conductor 18 Gauge Twisted Multi-Use Wire
• Ideal for OEM Integration connections or 4-Channel speaker wiring
• Colored coded design eliminates confusion during installation

The Install Bay SR8

MDF 3/4" Spacer Rings for 8" Speakers (Pair)

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MDF 3/4" Spacer Rings for 8" Speakers (Pair)

• 8" Speaker Ring
• Made from 3/4" MDF
• Perfect for Custom Fiberglass Enclosures

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List price $18.99
-11% $16.99

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• 8" Speaker Ring
• Made from 3/4" MDF
• Perfect for Custom Fiberglass Enclosures

Install Bay IBH3

H3 LED SINGLE BEAM PAIR

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H3 LED SINGLE BEAM PAIR

• Replacement LED headlight bulbs
• 3.1"
• Heat sink 1.26 inch

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Universal – fits most vehicles.
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List price $119.99
-58% $49.99

In stock

Only 2 Left!

• Replacement LED headlight bulbs
• 3.1"
• Heat sink 1.26 inch

Install Bay IBCPLR2

4 AWG to 8 AWG Nickel Plated Wire Gauge Reducer

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4 AWG to 8 AWG Nickel Plated Wire Gauge Reducer

• Wire Gauge Reducer
• 4 AWG to 8 AWG
• Nickel Plated
• Deep Wire Recesses
• Ultimate Power Delivery

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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4
List price $12.99
-15% $10.99

Available

Ships in 10-14 days

• Wire Gauge Reducer
• 4 AWG to 8 AWG
• Nickel Plated
• Deep Wire Recesses
• Ultimate Power Delivery

Install Bay IB5202

LED Replacement Headlight Bulbs - H5202 Single Beam

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LED Replacement Headlight Bulbs - H5202 Single Beam

• Replacement LED headlight bulbs
• 3.1 inch (78.2mm) total length
• Heat sink 1.26 inch (32mm) diameter
• Good for tight applications
• Compact design doesn’t compromise performance
• H5202 LED Single Beam
• As cool or even cooler than the traditional LED bulbs

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Universal – fits most vehicles.
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List price $119.99
-67% $39.99

In stock

Only 1 Left!

• Replacement LED headlight bulbs
• 3.1 inch (78.2mm) total length
• Heat sink 1.26 inch (32mm) diameter
• Good for tight applications
• Compact design doesn’t compromise performance
• H5202 LED Single Beam
• As cool or even cooler than the traditional LED bulbs

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    FAQ for Universal-Fit Audio & Electronics in 2004 DeVille

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

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

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    • Owner's manual
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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:

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