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1973 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 1973 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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Rockford Fosgate PLC2

Wired Bass Remote Controller for Select 2013-2025 Punch and Power Amplifiers

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Wired Bass Remote Controller for Select 2013-2025 Punch and Power Amplifiers

• Wired Bass Remote for select 2013-2025 Punch and Power amplifiers
• Includes bass knob, cable, mounting clip, mounting screws
• Controls level on rear outputs of 4-channel amplifiers
• Conveniently mount under dash, inside center console or glovebox

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$49.99

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• Wired Bass Remote for select 2013-2025 Punch and Power amplifiers
• Includes bass knob, cable, mounting clip, mounting screws
• Controls level on rear outputs of 4-channel amplifiers
• Conveniently mount under dash, inside center console or glovebox

Clarion CMR-10

Wired Marine Remote Control without LCD Display for Select Clarion Marine Stereos

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Wired Marine Remote Control without LCD Display for Select Clarion Marine Stereos

• Wired marine remote control without display
• Compatible with select Clarion stereos
• Easily adds up to 3 remotes
• IP67-rated water resistant design

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$99.99

In stock

Only 1 Left!

• Wired marine remote control without display
• Compatible with select Clarion stereos
• Easily adds up to 3 remotes
• IP67-rated water resistant design

Metra 44-UA20 Antenna

Replacement Amplified Hide-Away Antenna

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Replacement Amplified Hide-Away Antenna

• Replacement Amplified Hide-Away Antenna for AM/FM Bands
• Active Magnetic-Type Antenna
• Works on the Magnetic Field

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• Replacement Amplified Hide-Away Antenna for AM/FM Bands
• Active Magnetic-Type Antenna
• Works on the Magnetic Field

Metra IBR146

SAE Top Post Battery Terminals (Sold as Pair)

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SAE Top Post Battery Terminals (Sold as Pair)

• SAE Top Post Battery Terminals
• Pair of positive or negative battery clamps
• Top-mounted or side-mounted options
• Machined brass construction with satin chrome finish

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List price $53.99
-11% $47.99

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• SAE Top Post Battery Terminals
• Pair of positive or negative battery clamps
• Top-mounted or side-mounted options
• Machined brass construction with satin chrome finish

NVX XIV65

16.4 ft (5 meter) 6-Channel V-Series RCA Audio Interconnect Cable

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16.4 ft (5 meter) 6-Channel V-Series RCA Audio Interconnect Cable

• Shielded noise-rejecting Twisted-pair construction
• Heavy gauge OFC conductors ensure superior sound quality
• Split-tip Silver-Plated ends offer best in class signal transfer
• Molded ends equipped with colored channel identifiers

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• Shielded noise-rejecting Twisted-pair construction
• Heavy gauge OFC conductors ensure superior sound quality
• Split-tip Silver-Plated ends offer best in class signal transfer
• Molded ends equipped with colored channel identifiers

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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Available Offers (2) for NVX MVPA6
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Dads & Grads Sale! Save 15% at Checkout!
List price $383.99
-17% $319.99
$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.
Used from: $241.80

Metra IBWRD04

Dual 1/0-Gauge to Single 4-Gauge Input Wire Reducers

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Dual 1/0-Gauge to Single 4-Gauge Input Wire Reducers

• Dual 1/0-gauge input and output to 4-gauge wire reducer
• Machined brass construction with Chrome finish
• Designed for aftermarket audio upgrades in any vehicle

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List price $47.99
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Ships in 10-14 days

• Dual 1/0-gauge input and output to 4-gauge wire reducer
• Machined brass construction with Chrome finish
• Designed for aftermarket audio upgrades in any vehicle

4 Pack of 125 Amp Nickel-Plated MANL Fuse (Belva BMANL125)

Four fuses per order. High quality 125 Amp MANL Fuses

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Four fuses per order. High quality 125 Amp MANL Fuses

• 125A MANL Fuse (4 Pack)
• Nickel Plated for Better Power Transfer
• Resealable Polybag
• Heavy Duty Construction

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• 125A MANL Fuse (4 Pack)
• Nickel Plated for Better Power Transfer
• Resealable Polybag
• Heavy Duty Construction

Belva BRT0516

1/0 Gauge Ring Terminals, 5/16" Opening with Nickel Plated Brass - 2 Pieces (1 Red & 1 Black)

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1/0 Gauge Ring Terminals, 5/16" Opening with Nickel Plated Brass - 2 Pieces (1 Red & 1 Black)

• Ring Terminals
• 5/16" Opening
• 0/1 Gauge
• 1 Red & 1 Black
• Nickel Plated
• Resealable Polybag

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• Ring Terminals
• 5/16" Opening
• 0/1 Gauge
• 1 Red & 1 Black
• Nickel Plated
• Resealable Polybag

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

Sound Extreme by ECOXGEAR SEI-LEDZ4WHP4X2

Two RGBIC LED Whip Kit with LEDCast controller (4-foot)

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Two RGBIC LED Whip Kit with LEDCast controller (4-foot)

• 30 Customizable Modes (including Patriot & Christmas)
• LEDCAST enabled
• Dual Remote controls
• Connect up to 4 zones
• Waterproof and Shockproof

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• 30 Customizable Modes (including Patriot & Christmas)
• LEDCAST enabled
• Dual Remote controls
• Connect up to 4 zones
• Waterproof and Shockproof

JL Audio 12W0v3-4

300W RMS 12" W0v3 Series Single 4-ohm Car Subwoofer

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300W RMS 12" W0v3 Series Single 4-ohm Car Subwoofer

• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Foam Surround
• Mount depth: 5.40"
• Sensitivity: 85.64 dB

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$159.99

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Used from: $135.99

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

Limited time!

Belva BAK44BL

4 Gauge Premium (CCA) Copper Clad Aluminum Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1200 Watts - BLUE

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4 Gauge Premium (CCA) Copper Clad Aluminum Complete 4-Channel Amplifier Wiring Kit with RCA for Amplifiers up to 1200 Watts - BLUE

• Complete 4 Gauge Amplifier Installation Kit
• For Amplifiers Up To 1200 Watts RMS
• Premium (CCA) Copper Clad Aluminum
• Helical Twist 4-Channel RCA Cable
• ANL/Mini-ANL Fuse Holder with 80 amp fuse
• Complies to American Wire Gauge standards

FREE Belva Amp Kit at Checkout!
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iDataLink Maestro ACC-KIT-PKT1

Single DIN Stereo Dash Pocket with Pass-Thru

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Single DIN Stereo Dash Pocket with Pass-Thru

• Universal Single DIN storage pocket
• Install Single DIN in a Double DIN dash opening
• Mounts above or below the stereo
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture

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List price $99.99
-20% $79.99

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• Universal Single DIN storage pocket
• Install Single DIN in a Double DIN dash opening
• Mounts above or below the stereo
• Painted to Match Factory Dash Color
• High-Grade ABS Plastic Construction
• Factory Style Texture

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

NVX YSW154

1600W Peak (800W RMS) 15" Y-Series Dual 4-ohm Car Subwoofer

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1600W Peak (800W RMS) 15" Y-Series Dual 4-ohm Car Subwoofer

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 4 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 7.47"
• Sensitivity: 85 dB

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JL Audio MBT-RXv2

Weatherproof Bluetooth Marine Receiver

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Weatherproof Bluetooth Marine Receiver

• Weatherproof Bluetooth Marine Receiver
• For use with hideaway remote audio receiver or dash-mount controller
• Connects with up to 35 ft (11 meters) of wireless range
• IPX8 marine-grade rating

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• Weatherproof Bluetooth Marine Receiver
• For use with hideaway remote audio receiver or dash-mount controller
• Connects with up to 35 ft (11 meters) of wireless range
• IPX8 marine-grade rating

Stinger SGP32

200 Amp High Current Power Relay Battery Isolator

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200 Amp High Current Power Relay Battery Isolator

• 200 amp Battery Isolator and Relay
• Prevents primary battery discharge
• Maximum current transfer
• Extends battery life
• Universal 12V Applications

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• 200 amp Battery Isolator and Relay
• Prevents primary battery discharge
• Maximum current transfer
• Extends battery life
• Universal 12V Applications

JL Audio RD800/6

800W RMS Class D RD Series 6-Channel Car Amplifier

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800W RMS Class D RD Series 6-Channel Car Amplifier

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 1 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 6-Channel Amplifier

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    FAQ for Universal-Fit Audio & Electronics in 1973 Century

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1973 Buick Century?

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

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

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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.