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1984 Cadillac Eldorado

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 1984 Cadillac Eldorado

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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NVX XCW121RC

Recone Kit for XCW121 Subwoofers

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Recone Kit for XCW121 Subwoofers

• Kits are assembled to ensure perfect fitment and alignment
• Each kit includes all new soft moving parts
• Impedance: Dual 1-ohm
• CA glue adhesive is NOT included

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List price $179.99
-17% $149.99

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• Kits are assembled to ensure perfect fitment and alignment
• Each kit includes all new soft moving parts
• Impedance: Dual 1-ohm
• CA glue adhesive is NOT included

Stinger SPT5503

PRO Series Classic Banana Plug Dual Terminal w/ Shoc-Krome Plating and Black Plastic Clip (1/pack)

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PRO Series Classic Banana Plug Dual Terminal w/ Shoc-Krome Plating and Black Plastic Clip (1/pack)

• Accepts Up To 8 Gauge
• Dual Red Molded Design
• Compression Style Connection
• Expandable Quick Connection
• Shoc-Krome Plating

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List price $19.00
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• Accepts Up To 8 Gauge
• Dual Red Molded Design
• Compression Style Connection
• Expandable Quick Connection
• Shoc-Krome Plating

NVX - Worth the Envy - Direct to Consumer Car Audio

T-Spec VANL

V8 SERIES ANL 1/0 AWG FUSE HOLDER

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V8 SERIES ANL 1/0 AWG FUSE HOLDER

• 1/0 AQWG Fuse Holder
• Lok-Nut style fasteners
• Water resistant

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$19.00

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• 1/0 AQWG Fuse Holder
• Lok-Nut style fasteners
• Water resistant

JL Audio 12TW3-D4

400W RMS 12" TW3 Series Dual 4-ohm Shallow Subwoofer

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400W RMS 12" TW3 Series Dual 4-ohm Shallow Subwoofer

• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 dB

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$569.99

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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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List price $14.99
-47% $7.99

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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

XS Power Titan8 (PWR-S6-3400)

6000W 10Ah Lithium Titanate Oxide (LTO) Battery

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6000W 10Ah Lithium Titanate Oxide (LTO) Battery

• 14-volt Lithium Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Perfect for up to 6000-watt audio systems

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• 14-volt Lithium Battery
• Sealed Lithium Titanate Oxide (LTO) design
• Perfect for up to 6000-watt audio systems

DS18 XM5

5-Way Pro Audio High Volt Active Crossover with Bass Boost

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5-Way Pro Audio High Volt Active Crossover with Bass Boost

• 5-Way high-voltage active crossover
• (2) front and (2) rear/sub inputs
• High/mid, high/mid/low, and mid/low outputs
• Features clip indicators

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List price $287.99
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• 5-Way high-voltage active crossover
• (2) front and (2) rear/sub inputs
• High/mid, high/mid/low, and mid/low outputs
• Features clip indicators

NVX YSW122

1600W Peak (800W RMS) 12" Y-Series Dual 2-ohm Car Subwoofer

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1600W Peak (800W RMS) 12" Y-Series Dual 2-ohm Car Subwoofer

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 6.5"
• Sensitivity: 85 dB

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List price $227.99
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Available Offers (2) for NVX YSW122
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List price $227.99
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$127.49 with coupon | Price details
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Purchase $400 or More of NVX and Save 15%!
2026-07-27 11:08:20

Tru Spec 2X12SUPB (1545KE)

Empty Dual 12" Vented Prefabricated Enclosure

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Empty Dual 12" Vented Prefabricated Enclosure

• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 3.50 cubic feet
• Computer-designed CNC cut

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List price $399.99
-25% $299.99

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JL Audio XB-MGLU

Premium Series Bolt-on Master Ground Lug

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Premium Series Bolt-on Master Ground Lug

• Master Ground Lug accepts multiple ground wires
• Stainless Steel lug with plated brass contact
• Aggressive star washers provide secure connection

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$14.99

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• Master Ground Lug accepts multiple ground wires
• Stainless Steel lug with plated brass contact
• Aggressive star washers provide secure connection

T-Spec V8-3DDC

Digital Capacitor 3.0 Farad Distribution Top

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Digital Capacitor 3.0 Farad Distribution Top

• 3.0 Farad Digital Capacitor
• Voltage Meter
• Impact Resistant Polycarbonate Cover
• Simple Mounting System

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• 3.0 Farad Digital Capacitor
• Voltage Meter
• Impact Resistant Polycarbonate Cover
• Simple Mounting System

JL Audio FiX-86

6-Channel OEM Integration Digital Sound Processor with Automatic Time Correction

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6-Channel OEM Integration Digital Sound Processor with Automatic Time Correction

• OEM integration digital signal processor
• 24-bit DSP processor and quad 1/3 octave equalizers
• 8-input and 6-output channels
• Access four user-adjustable 10-band graphic equalizers
• 30-second single button calibration

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$529.99

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• OEM integration digital signal processor
• 24-bit DSP processor and quad 1/3 octave equalizers
• 8-input and 6-output channels
• Access four user-adjustable 10-band graphic equalizers
• 30-second single button calibration

JL Audio XD-AICDO-12

12-Foot Digital Optical Audio Cable with Toslink Connectors

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12-Foot Digital Optical Audio Cable with Toslink Connectors

•Digital Optical Audio Connection Cable
• Digital Optical Audio Connection Cable
• Built-in Toslink Connectors
• Length: 12 feet

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$69.99

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•Digital Optical Audio Connection Cable
• Digital Optical Audio Connection Cable
• Built-in Toslink Connectors
• Length: 12 feet

JL Audio 13W7AE-D1.5

1500W RMS 13.5” W7AE Series Dual 1.5-ohm Car Subwoofer

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1500W RMS 13.5” W7AE Series Dual 1.5-ohm Car Subwoofer


• RMS Power: 1500 watts
• Impedance: Dual 1.5 ohm
• Polypropylene Cone
• Polyester Foam Surround
• Mount depth: 10.50"
• Sensitivity: 86.3 dB

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JL Audio XD-MAXI-40

40 A Maxi Fuse

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40 A Maxi Fuse

• Platinum-Plated Contacts
• Ultimate Circuit Protection
• High Conductivity Plating
• Maximum Current Transfer
• Designed to Fit Maxi Fuse Holders

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• Platinum-Plated Contacts
• Ultimate Circuit Protection
• High Conductivity Plating
• Maximum Current Transfer
• Designed to Fit Maxi Fuse Holders

JL Audio TwK-88

8-Channel Digital Signal Processor with Digital Remote Controller

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8-Channel Digital Signal Processor with Digital Remote Controller

• 8-Channel digital signal processo
• 80 total bands of equalization
• TüN software offers quick input/output setup
• 8 RCA inputs or 1 optical input
• Includes DRC-200 digital remote control

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• 8-Channel digital signal processo
• 80 total bands of equalization
• TüN software offers quick input/output setup
• 8 RCA inputs or 1 optical input
• Includes DRC-200 digital remote control

Rockford Fosgate Power T1500-1BDCP

1500W RMS Class BD Power Series Monoblock Car Amplifier

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1500W RMS Class BD Power Series Monoblock Car Amplifier

• 1000 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class BD 1 ohm Stable Monoblock Amplifier

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Available Offers (2) for Rockford Fosgate Power T1500-1BDCP
FREE NVX Amp Kit at Checkout!
Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
Used from: $654.49

Install Bay 3MHST18

3M Heat Shrink 1/8" Diameter Tubing Black

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3M Heat Shrink 1/8" Diameter Tubing Black

• 1/8 inch heat shrink tubing
• Made with polyoefin (black)
• Length: 4 feet

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List price $5.99
-17% $4.99

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• 1/8 inch heat shrink tubing
• Made with polyoefin (black)
• Length: 4 feet

Alpine DVR-C320R

Premium 1080p HD Night Vision Front/Rear Stealth Dash Camera Bundle with Wi-Fi and GPS Support

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Premium 1080p HD Night Vision Front/Rear Stealth Dash Camera Bundle with Wi-Fi and GPS Support

• Premium 1080p HD Night Vision Dash Camera Bundle
• Includes 1 front and 1 rear camera
• Records in full 1080p HD at 30 FPS with a140-degree field of view
• Continuous recording, incident recording, incident continuous recording for BCWS
• Manual recording and parking mode recording modes
• Front collision, lane departure and front car movement warning alerts
• Built-in WiFi and GPS
• Compatible with select Alpine receivers

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Buy 1 Select Alpine Stereo and you’ll save 100% off up to $500 on Free DVR-C320R Dash Cam in your cart


Like New from: $474.95

• Premium 1080p HD Night Vision Dash Camera Bundle
• Includes 1 front and 1 rear camera
• Records in full 1080p HD at 30 FPS with a140-degree field of view
• Continuous recording, incident recording, incident continuous recording for BCWS
• Manual recording and parking mode recording modes
• Front collision, lane departure and front car movement warning alerts
• Built-in WiFi and GPS
• Compatible with select Alpine receivers

Kicker GL712 (08GL712)

Square Grille for Kicker 12" Solo-Baric L7 Subwoofers

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Square Grille for Kicker 12" Solo-Baric L7 Subwoofers

• 12" Cast Aluminum Subwoofer Grille
• Enhances the Look of your 08 Series Kicker Solo-Baric Subwoofers
• Protects the Sub from Damage
• Gives your Woofer an Attractive Look

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$34.99

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• 12" Cast Aluminum Subwoofer Grille
• Enhances the Look of your 08 Series Kicker Solo-Baric Subwoofers
• Protects the Sub from Damage
• Gives your Woofer an Attractive Look

NVX XCAP1F

True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

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True 1.0 Farad 20V Capacitor with Digital Read-out, Built-in Distribution Block

• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

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List price $131.99
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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.
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• For Systems Up To 1200 Watts
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

Limited time!

NVX XW4BL20

20 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Blue)

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20 ft 4-Gauge EnvyFlex True Spec Oxygen-Free Copper Power and Ground Wire (Blue)

• 20 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue

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• 20 feet 4 gauge Power and Ground Wire
• Silver-tinned OFC (100% Oxygen-Free Copper) material
• Color: Blue

XS Power D1200

1500W 55Ah Absorbent Glass Mat (AGM) Powersports Battery

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1500W 55Ah Absorbent Glass Mat (AGM) Powersports Battery

• 12-volt Absorbent Glass Mat (AGM) Powersports Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 1500W audio stereo systems
• Compatible with most vehicle applications

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List price $349.99
-26% $259.99

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Beat-Sonic VD2

1 Input to 2 Output Composite Video Splitter

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1 Input to 2 Output Composite Video Splitter

• 1 input for 2 output video signal splitter
• Hard aluminum body to protect the device
• Filters out incoming noises
• Small and compact size

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$85.99

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• 1 input for 2 output video signal splitter
• Hard aluminum body to protect the device
• Filters out incoming noises
• Small and compact size

Install Bay IBVSTABL

12V 2A DC-DC Voltage Converter Stabilizer

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12V 2A DC-DC Voltage Converter Stabilizer

• Voltage converter stabilizer
• Input voltage: DC 8 volts - 40 volts
• Output voltage: DC 12 volts
• Maximum output current: 2 amps

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-11% $50.99

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• Voltage converter stabilizer
• Input voltage: DC 8 volts - 40 volts
• Output voltage: DC 12 volts
• Maximum output current: 2 amps

DS18 NF1

1-Channel RCA Compact Noise Filter

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1-Channel RCA Compact Noise Filter

• 1-Channel RCA Compact Noise Filter
• Number of channels: 1-Mono
• Input type: Female RCA
• Output type: Male RCA

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$22.95

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• 1-Channel RCA Compact Noise Filter
• Number of channels: 1-Mono
• Input type: Female RCA
• Output type: Male RCA

Limited time!

NVX BIR200

200-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 300-Amp Surge)

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200-Amp High Current Dual Battery Isolator and Relay for Car Audio Systems (Handles up to 300-Amp Surge)

• 200-Amp continuous / 300-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16V DC operating range

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• 200-Amp continuous / 300-Amp surge
• Ideal for car stereo systems and mobile electronics
• Prevents the main starter battery from draining
• 10V to 16V DC operating range

Limited time!

Alpine R2-W10D2

2250W Peak (750W RMS) 10" R2-Series Dual 2-ohm Car Subwoofer

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2250W Peak (750W RMS) 10" R2-Series Dual 2-ohm Car Subwoofer

• Peak Power: 2250 watts
• RMS Power: 750 watts
• Impedance: Dual 2 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 5.92"
• Sensitivity: 82.3 dB

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Metra 44-EC48 Antenna Extension

48" Universal Antenna Extension Cable

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48" Universal Antenna Extension Cable

• Universal Antenna Extender • Extends Antenna 48" (4 ft.)

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• Universal Antenna Extender • Extends Antenna 48" (4 ft.)

Wet Sounds ZERO 12 ENC

Empty Single 12" Sealed Enclosure for ZERO 12 Subwoofers

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Empty Single 12" Sealed Enclosure for ZERO 12 Subwoofers

• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Includes hardware to connect multiple ZERO 12 ENC boxes

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$369.99

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• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Includes hardware to connect multiple ZERO 12 ENC boxes

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NVX SDRLR1 Sound Dampening Rubber Roller

Universal Professional Heavy Duty Roller for Sound Deadening Mat

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Universal Professional Heavy Duty Roller for Sound Deadening Mat

• Universal heavy duty roller for installing sound deadening mats
• Compatible with NVX, Dynamat, and other brands
• Thick plated steel frame
• 2" solid, soft urethane rubber roller

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• Universal heavy duty roller for installing sound deadening mats
• Compatible with NVX, Dynamat, and other brands
• Thick plated steel frame
• 2" solid, soft urethane rubber roller

JL Audio PS-SWMCP-2.500

Enclosed Speaker System Swivel Mount - 2.500"

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Enclosed Speaker System Swivel Mount - 2.500"

• Low-Profile Machined Fixtures
• Mounts VeX Pods to Roll Cage
• Pipe diameter fitment: 2.500"
• Color: Black

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$179.99

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• Low-Profile Machined Fixtures
• Mounts VeX Pods to Roll Cage
• Pipe diameter fitment: 2.500"
• Color: Black

JL Audio PS-SWMCP-B-2.250

2.25" Pipe Mounting Fixtures for VeX Marine Tower Speakers

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2.25" Pipe Mounting Fixtures for VeX Marine Tower Speakers

• 2.25" Pipe Mounting Fixtures for VeX Marine Tower Speakers
• Fixed mounting fixtures for PS650-VeX models
• Anodized finish with UV corrosion-resistant
• Allows mount to a variety of roll cage diameters or flat surfaces

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$179.99

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Ships in 10-14 days


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PS-SWMCP-B-2.250 main
Offer may end without notice

Deal Details

Buy 1 Select M6 Series Marine Tower Speakers and you’ll save 50% off Select Clamps in your cart


• 2.25" Pipe Mounting Fixtures for VeX Marine Tower Speakers
• Fixed mounting fixtures for PS650-VeX models
• Anodized finish with UV corrosion-resistant
• Allows mount to a variety of roll cage diameters or flat surfaces

Limited time!

NVX NSW102 Version 3 (NSW102v3)

1000W Peak (500W RMS) N-Series v3 10" Dual 2-Ohm Car Subwoofer

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1000W Peak (500W RMS) N-Series v3 10" Dual 2-Ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 2 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 5.36"
• Sensitivity: 85 dB

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List price $107.99
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Second Skin Audio SPEC-20-1GAL

1 Gallon Spray-on or Brush-on Spectrum Liquid Sound Damping

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1 Gallon Spray-on or Brush-on Spectrum Liquid Sound Damping

• 20 square feet sq. ft Sound Damping Liquid Coating
• Material Used: Vibration Dampener
• Material Thickness: 0.080"
• Install Location: Universal
• Contains 1 gallon of liquid spray

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List price $119.99
-17% $99.99

In stock.

• 20 square feet sq. ft Sound Damping Liquid Coating
• Material Used: Vibration Dampener
• Material Thickness: 0.080"
• Install Location: Universal
• Contains 1 gallon of liquid spray

Viper D9858V

2-Way 5-Button Remote Start and Car Alarm LED Transmitters

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2-Way 5-Button Remote Start and Car Alarm LED Transmitters

• 2-Way 5-Button Remote Start and Car Alarm LED Transmitters
• Includes (1) 2-way LED transmitter and (1) 1-way transmitter
• 1 mile range
• Compatible with Viper DS4 and DS4P security systems

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• 2-Way 5-Button Remote Start and Car Alarm LED Transmitters
• Includes (1) 2-way LED transmitter and (1) 1-way transmitter
• 1 mile range
• Compatible with Viper DS4 and DS4P security systems

PAC SNI-35

50W Peak Variable LOC

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50W Peak Variable LOC

• Adjustable Line Output Converter
• Utilize Audio Transformer for Noise Isolation
• Compatible with 2 - 40 watts RMS of Radio Output

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• Adjustable Line Output Converter
• Utilize Audio Transformer for Noise Isolation
• Compatible with 2 - 40 watts RMS of Radio Output

Select Increments Versa-Pods (52308)

Empty Pair 4" Universal Speaker Pods

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Empty Pair 4" Universal Speaker Pods

• Empty Single 4" Universal Speaker Pods
• Durable ABS plastic enclosure construction
• Versatile use for cars, motorcycles, and extreme terrain vehicles

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• Empty Single 4" Universal Speaker Pods
• Durable ABS plastic enclosure construction
• Versatile use for cars, motorcycles, and extreme terrain vehicles

Rockford Fosgate DSR-1

8-Channel Digital Signal Processor with Integrated iDataLink Maestro Module

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8-Channel Digital Signal Processor with Integrated iDataLink Maestro Module

• Digital Signal Processing with Integrated Maestro CAN Interface
• Four channel high level inputs with signal sense turn on
• 18 Pin Analog Input and 16 Pin Analog Output Harness
• Interactive Tuning Interface Controlled via Android/iOS APP

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• Digital Signal Processing with Integrated Maestro CAN Interface
• Four channel high level inputs with signal sense turn on
• 18 Pin Analog Input and 16 Pin Analog Output Harness
• Interactive Tuning Interface Controlled via Android/iOS APP

Axxess AXGLI-R

2-Channel RCA Ground Loop Isolator

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2-Channel RCA Ground Loop Isolator

• 2-channel RCA ground loop isolator
• Easily eliminates unwanted ground loop noise
• No need for additional adapters
• Universal vehicle application

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List price $23.99
-13% $20.99

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• 2-channel RCA ground loop isolator
• Easily eliminates unwanted ground loop noise
• No need for additional adapters
• Universal vehicle application

NVX - Worth the Envy - Direct to Consumer Car Audio

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    FAQ for Universal-Fit Audio & Electronics in 1984 Eldorado

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1984 Cadillac Eldorado?

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

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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