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1978 Buick Century

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 1978 Buick Century

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 VPROHTD

1" Replacement Diaphragm for NVX VPRO35TW Super Slim Bullet Tweeters

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1" Replacement Diaphragm for NVX VPRO35TW Super Slim Bullet Tweeters

• 1" titanium replacement diaphragm for NVX VPRO35TW tweeters
• Restores clear, high-frequency sound
• Replaces damaged or worn components
• Quick and easy installation

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List price $12.99
-23% $9.99

In stock

• 1" titanium replacement diaphragm for NVX VPRO35TW tweeters
• Restores clear, high-frequency sound
• Replaces damaged or worn components
• Quick and easy installation

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

In stock

Only 2 Left!

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

Viper 7957V

2-Way 5-Button Remote Start, Keyless Entry and Car Alarm LED Transmitter

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2-Way 5-Button Remote Start, Keyless Entry and Car Alarm LED Transmitter

• 2-Way Remote Start, Keyless Entry and Car Alarm LCD Transmitter
• Includes (1) 5-button LCD transmitter
• 1 mile range
• Compatible with Viper security systems

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List price $229.99
-22% $179.99

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• 2-Way Remote Start, Keyless Entry and Car Alarm LCD Transmitter
• Includes (1) 5-button LCD transmitter
• 1 mile range
• Compatible with Viper security systems

JL Audio M6-770STR-S-Cm

7.7" Trim Ring for Sport Grilles in JL Audio M6 Series Marine Speakers (Cream)

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7.7" Trim Ring for Sport Grilles in JL Audio M6 Series Marine Speakers (Cream)

• 7.7" trim ring for sport grilles in M6 speakers
• M6 speakers sold separately
• Color: Cream

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$37.99

Available

Ships in 10-14 days

• 7.7" trim ring for sport grilles in M6 speakers
• M6 speakers sold separately
• Color: Cream

Beat-Sonic VD6

1 Input to 6 Output Composite Video Splitter

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1 Input to 6 Output Composite Video Splitter

• 1 input for 6 output video signal splitter
• Hard aluminum body to protect the device
• Filters out incoming noises
• Small and compact size

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List price $120.00
-10% $108.00

In stock.

• 1 input for 6 output video signal splitter
• Hard aluminum body to protect the device
• Filters out incoming noises
• Small and compact size

NVX VSLR39

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

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List price $39.99
-63% $14.99

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Used from: $10.49

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

Cerwin-Vega PRD5

1" Replacement Diaphragm for P5T Tweeter

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1" Replacement Diaphragm for P5T Tweeter

• 1" replacement diaphragm for Cerwin Vega P5T tweeter
• East to install, no cutting or drilling required
• Improves high‑frequency performance

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$44.99

In stock.

• 1" replacement diaphragm for Cerwin Vega P5T tweeter
• East to install, no cutting or drilling required
• Improves high‑frequency performance

Diamond Audio MRDO12

1" Replacement Diaphragm for Tweeters Except M075T/M075T2

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1" Replacement Diaphragm for Tweeters Except M075T/M075T2

• 1" Replacement Diaphragm for Tweeters
• Compatible with most 1" tweeters
• Not compatible with M075T or M075T2 models
• Impedance: 2-ohm

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$44.99

Available

Ships in 10-14 days

• 1" Replacement Diaphragm for Tweeters
• Compatible with most 1" tweeters
• Not compatible with M075T or M075T2 models
• Impedance: 2-ohm

Infinity Reference 10001A (AMPRF10001AAM)

1000W Reference Class D Reference Series Monoblock Car Amplifier with Remote Bass

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1000W Reference Class D Reference Series Monoblock Car Amplifier with Remote Bass

• 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

2+ offers available
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List price $569.95
-12% $499.95

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Available Offers (2) for Infinity Reference 10001A (AMPRF10001AAM)
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.

Stinger SPT53102

PRO Classic Battery Terminal (1) 1/0ga + (1) 4ga + (2) 8ga Outputs Shoc-Krome (Positive)

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PRO Classic Battery Terminal (1) 1/0ga + (1) 4ga + (2) 8ga Outputs Shoc-Krome (Positive)

• Positive Battery Terminal
• Shoc-Krome-plated Output
• Impact resistant covers
• One 4 Gauge Output
• One 1/0 Gauge Output
• Two 8 Gauge Outputs

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• Positive Battery Terminal
• Shoc-Krome-plated Output
• Impact resistant covers
• One 4 Gauge Output
• One 1/0 Gauge Output
• Two 8 Gauge Outputs

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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$419.99

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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

Limitless Lithium 25A12V-CRG

25A 12V Stock Voltage Battery Charger

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25A 12V Stock Voltage Battery Charger

• Stock Voltage Battery Charger
• Recommended for Nano, Retro Pro and No-Li batteries
• Designed for charging 15 volts batteries
• Features LED function display type

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$239.00

In stock

• Stock Voltage Battery Charger
• Recommended for Nano, Retro Pro and No-Li batteries
• Designed for charging 15 volts batteries
• Features LED function display type

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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-45% $65.99

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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

Limited time!

Alpine R2-W10D4

2250W Peak (750W RMS) 10" R2-Series Dual 4-ohm Car Subwoofer

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2250W Peak (750W RMS) 10" R2-Series Dual 4-ohm Car Subwoofer

• Peak Power: 2250 watts
• RMS Power: 750 watts
• Impedance: Dual 4 ohm
• Kevlar Reinforced Pulp Paper Cone
• High-Amplitude Multi-Roll (HAMR) Surround
• Mount depth: 5.92"
• Sensitivity: 82.8 dB

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Metra 109-UN02 Universal Dashkit for DMHWC6600NEX

Required to install a new Pioneer DMH-WC6600NEX (Additional Specifc-fit Dashkit Required)

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Required to install a new Pioneer DMH-WC6600NEX (Additional Specifc-fit Dashkit Required)

• Double-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

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List price $103.99
-39% $62.99

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• Double-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

Limited time!

Infinity Kappa 103WDSSI (INFSUBKA103WDSSIAM)

1350W Peak (450W RMS) 10” Kappa Series Single 2-or 4-ohm Car Subwoofer

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1350W Peak (450W RMS) 10” Kappa Series Single 2-or 4-ohm Car Subwoofer

• Peak Power: 1350 watts
• RMS Power: 450 watts
• Impedance: Single 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 6-1/4"
• Sensitivity: 91 dB

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List price $359.95
Save $230.00
-64% $129.95

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Used from: $139.96

JL Audio SGRU-8

Mesh Grille for JL Audio 8" W1v3 and W3v3 Subwoofers

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Mesh Grille for JL Audio 8" W1v3 and W3v3 Subwoofers

8" Grille made specifically for the JL Audio 8W1v2, 8W1v3, 8W3v3 Sub • Provides the Best Protection Possible • Top-Notch JL Audio Quality • Metal Mesh Grille Painted Black

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$29.99

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8" Grille made specifically for the JL Audio 8W1v2, 8W1v3, 8W3v3 Sub • Provides the Best Protection Possible • Top-Notch JL Audio Quality • Metal Mesh Grille Painted Black

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

In stock

Used from: $195.49

NVX XBTU

Positive/Negative Battery Terminal Clamp with One 1/0 or 4 Gauge and Two 4 or 8 Gauge Outputs

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Positive/Negative Battery Terminal Clamp with One 1/0 or 4 Gauge and Two 4 or 8 Gauge Outputs

• Positive or Negative Battery Terminal Clamp
• Connects to the positive or negative battery terminal
• Splits the connection to 3 outputs
• One 1/0 or 4 Gauge and two 4 or 8 Gauge outputs

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• Positive or Negative Battery Terminal Clamp
• Connects to the positive or negative battery terminal
• Splits the connection to 3 outputs
• One 1/0 or 4 Gauge and two 4 or 8 Gauge outputs

SMD AMM-1

Audio Multimeter

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Audio Multimeter

• Measure True Amplifier Power Output
• Measure DC Voltage Drops
• Measure Common DC Voltages
• Measure Impedance of Speakers
• Measure Phase Difference

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List price $468.98
$458.98

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• Measure True Amplifier Power Output
• Measure DC Voltage Drops
• Measure Common DC Voltages
• Measure Impedance of Speakers
• Measure Phase Difference

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    FAQ for Universal-Fit Audio & Electronics in 1978 Century

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1978 Buick Century?

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

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    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • 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.