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1990 Oldsmobile Custom Cruiser

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 1990 Oldsmobile Custom Cruiser

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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MTX 5510-44

800W Peak (400W RMS) 10" 55 Series Dual 4-ohm Car Subwoofer

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800W Peak (400W RMS) 10" 55 Series Dual 4-ohm Car Subwoofer

• Peak Power: 800 watts
• RMS Power: 400 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 5.625"
• Sensitivity: 83.5 dB

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$189.95

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Metra 99-9000

Universal Underdash Stereo Installation Enclosure

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Universal Underdash Stereo Installation Enclosure

• Universal Underdash CD Housing
• Premium underdash housing fully encloses the unit
• Quick conversion from 2-Shaft to DIN
• High-grade ABS Plastic

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• Universal Underdash CD Housing
• Premium underdash housing fully encloses the unit
• Quick conversion from 2-Shaft to DIN
• High-grade ABS Plastic

NVX - Worth the Envy - Direct to Consumer Car Audio
Limited time!

NVX NE101P

Single 10" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.5 Cu. Ft. with Polyfil and NVX Logo

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Single 10" Slot Ported 3/4" MDF Black Carpeted Subwoofer Enclosure – 1.5 Cu. Ft. with Polyfil and NVX Logo

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Internal box volume: 1.50 cubic feet
• Premium Black Carpet with Black NVX Logo

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List price $101.99
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Belva BAHNGM

Surface Mount Flange for use with BAWPL, BA2USB, BAVTM

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Surface Mount Flange for use with BAWPL, BA2USB, BAVTM

• Surface Mount Flange for use with BAWPL, BA2USB, BAVTM

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• Surface Mount Flange for use with BAWPL, BA2USB, BAVTM

JBL Stage 122 (JBLSUBST122AM)

1000W Peak (250W RMS) 12" Stage Series Single 4-ohm Car Subwoofer

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1000W Peak (250W RMS) 12" Stage Series Single 4-ohm Car Subwoofer

• Peak Power: 1000 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6"
• Sensitivity: 91 dB

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List price $129.95
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Sound Extreme by ECOXGEAR SEI-SEWHP4

4 ft. Extreme LEDCast Lighting Whip and Controller

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4 ft. Extreme LEDCast Lighting Whip and Controller

• Extreme LEDCast Lighting Whip Kit with Controller
• Long range RF remote, and smartphone BLE app
• Create custom lighting presets
• IP66-rated for dirt and moisture resistance
• Optional light control to vehicle's brake, reverse and turn signals

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• Extreme LEDCast Lighting Whip Kit with Controller
• Long range RF remote, and smartphone BLE app
• Create custom lighting presets
• IP66-rated for dirt and moisture resistance
• Optional light control to vehicle's brake, reverse and turn signals

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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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

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 (4) 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.
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2026-07-27 11:08:20

Wet Sounds ST-ADP-RND 1.75

Mounting Clamps for Stealth Soundbars with 1.75" Round Tubing

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Mounting Clamps for Stealth Soundbars with 1.75" Round Tubing

• Mounting clamp for Stealth soundbars with 1.75" round tubing
• Allows soundbar mounting to the roll cage or tower tubing
• CNC'd from billet aluminum for extra durability
• Includes mounting hardware

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• Mounting clamp for Stealth soundbars with 1.75" round tubing
• Allows soundbar mounting to the roll cage or tower tubing
• CNC'd from billet aluminum for extra durability
• Includes mounting hardware

Limited time!

Belva BCCAP22 (CC2218)

22/18 Gauge Nylon Crimp Cap 100 Pack

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22/18 Gauge Nylon Crimp Cap 100 Pack

• 22/18 Gauge Nylon Crimp Cap
• Heat shrinkable Design
• Makes Crimping Wires Fast and Easy
• Offers a Solid Connection of Wires
• Gauge: 22/18
• Color: Clear
• Count: 100

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• 22/18 Gauge Nylon Crimp Cap
• Heat shrinkable Design
• Makes Crimping Wires Fast and Easy
• Offers a Solid Connection of Wires
• Gauge: 22/18
• Color: Clear
• Count: 100

Alpine RUX-KNOB.2

Dash Mount Wired Bass Remote Controller for Alpine Amplifiers

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Dash Mount Wired Bass Remote Controller for Alpine Amplifiers

• Wired Bass Remote Controller
• Compatible with Alpine amplifiers
• Dash-mountable installation
• Variable Gain Control: 0 to -12 dB
• Color: Black

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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

JL Audio M-SWMCPv3-1.660

ETXv3 Enclosed Speaker System Swivel Mount Fixture, for Pipe Diameter of 1.660 in

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ETXv3 Enclosed Speaker System Swivel Mount Fixture, for Pipe Diameter of 1.660 in

• JL Audio Tower Speaker Swivel Mounting Kit
• Clamp has an Inner Diameter of 1.660 Inches
• For M-Series and MX-Series JL Audio Tower Speakers
• 334 Degrees of Total Swivel Capability

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$349.99

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• JL Audio Tower Speaker Swivel Mounting Kit
• Clamp has an Inner Diameter of 1.660 Inches
• For M-Series and MX-Series JL Audio Tower Speakers
• 334 Degrees of Total Swivel Capability

AudioControl EPICPRO3NT

360W Peak (280W RMS) 3" Epic Pro Series 4-ohm Pro Audio Horn Tweeters

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360W Peak (280W RMS) 3" Epic Pro Series 4-ohm Pro Audio Horn Tweeters

• 3" Epic Pro Series 4-ohm Pro Audio Horn Tweeters
• 360 watts per pair / 180 watts Peak each
• 280 watts per pair / 140 watts RMS each
• 4 oz. Neodymium magnet motor structure
• 4-ohm impedance

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$99.00

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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

Tru Spec Dual 10" (1459UN)

Empty Dual 10" Vented Prefabricated Enclosure

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Empty Dual 10" Vented Prefabricated Enclosure

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2 cubic feet
• Compatible for Sundown SA10V2 and similar subwoofers (Sold separately)

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JL Audio M-MCPv3-2.000

ETXv3 Enclosed Speaker System Clamp, for pipe diameter of 2.000 in (50.8 mm)

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ETXv3 Enclosed Speaker System Clamp, for pipe diameter of 2.000 in (50.8 mm)

• JL Audio Tower Speaker Mounting Kit
• Clamp has an Inner Diameter of 2.000 Inches
• For M-Series and MX-Series JL Audio Tower Speakers

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$209.99

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• JL Audio Tower Speaker Mounting Kit
• Clamp has an Inner Diameter of 2.000 Inches
• For M-Series and MX-Series JL Audio Tower Speakers

Limited time!

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

Energie PR4800

12V 110Ah Absorbent Glass Mat (AGM) Car Battery

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12V 110Ah Absorbent Glass Mat (AGM) Car Battery

• 12-volt Absorbent Glass Mat Car Audio Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 4800W car audio stereo systems
• Left positive terminal

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• 12-volt Absorbent Glass Mat Car Audio Battery
• Sealed Absorbent Glass Mat (AGM) design
• Perfect for 4800W car audio stereo systems
• Left positive terminal

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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List price $249.99
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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

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    FAQ for Universal-Fit Audio & Electronics in 1990 Custom Cruiser

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1990 Oldsmobile Custom Cruiser?

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

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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.