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1978 Cadillac DeVille

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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.

Overview Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Universal-Fit Audio for 1978 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.

Better sound with your factory radio

Better sound with a factory radio

Love your factory look or can't replace the stereo? We got you covered.

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Pioneer TS-D12D2

2000W Peak (600W RMS) 12" D-Series Dual 2-ohms Car Subwoofer

TS-D12D2 big DISCONTINUED
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Pioneer TS-D12D2

2000W Peak (600W RMS) 12" D-Series Dual 2-ohms Car Subwoofer

• Peak Power: 2000 watts
• RMS Power: 600 watts
• IMPP - Aramid Fiber and Carbon Fiber Aramid fiber Cone
• Rubber Surround
• Impedance: Dual 2 ohm
• Mount depth: 6-1/8"
• Sensitivity: 76 dB

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• Peak Power: 2000 watts
• RMS Power: 600 watts
• IMPP - Aramid Fiber and Carbon Fiber Aramid fiber Cone
• Rubber Surround
• Impedance: Dual 2 ohm
• Mount depth: 6-1/8"
• Sensitivity: 76 dB

Pioneer TS-A2000LD2

700W Peak (250W RMS) 8” A-Series Dual 2-ohm Shallow Car Subwoofer

TS-A2000LD2 big Out of stock
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Pioneer TS-A2000LD2

700W Peak (250W RMS) 8” A-Series Dual 2-ohm Shallow Car Subwoofer

• Peak Power: 700 watts
• RMS Power: 250 watts
• Impedance: Dual 2 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 2-5/8"
• Sensitivity: 83 dB

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2
List price $200.00
-20% $159.99
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• Peak Power: 700 watts
• RMS Power: 250 watts
• Impedance: Dual 2 ohm
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 2-5/8"
• Sensitivity: 83 dB

Pioneer GM-D9701 with Amplifier Wiring Kit

1200W RMS Class D Monoblock Amplifier w/ Wired Bass Boost Remote

GM-D9701, XKIT42 big Out of stock
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Pioneer GM-D9701 with Amplifier Wiring Kit

1200W RMS Class D Monoblock Amplifier w/ Wired Bass Boost Remote

• RMS: 500W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB
• Class D Circuitry
• Includes Amplifier Wiring Kit

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44
List price $777.99
-28% $559.98
Add to Cart

• RMS: 500W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB
• Class D Circuitry
• Includes Amplifier Wiring Kit

Pioneer GM-DX975 with NVX 4 Gauge Amp Kit

2000W Peak (800W RMS) GM Series Class-D 5-Channel Amplifier with Remote Bass Knob

GMDX975_XKIT46 big Out of stock
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Pioneer GM-DX975 with NVX 4 Gauge Amp Kit

2000W Peak (800W RMS) GM Series Class-D 5-Channel Amplifier with Remote Bass Knob

• 75 watts x 4 channel + 350 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

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47
List price $829.99
-22% $647.48
Add to Cart

• 75 watts x 4 channel + 350 watts x 1 channel @ 4 ohm
• 100 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 800 watts
• Class D 2 ohm Stable 5-Channel Amplifier
• Includes Amplifier Wiring Kit

Pioneer TS-A301TW

900W Peak (200W RMS) 3/4" A Series PEI Hard Dome Component Tweeters

TS-A301TW big Out of stock
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Pioneer TS-A301TW

900W Peak (200W RMS) 3/4" A Series PEI Hard Dome Component Tweeters

• 3/4" A Series Hard Dome Tweeters
• 450 watts Peak Each
• 100 watts RMS Each
• 4 ohm Impedance

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1
List price $65.00
-15% $55.00 /pair
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• 3/4" A Series Hard Dome Tweeters
• 450 watts Peak Each
• 100 watts RMS Each
• 4 ohm Impedance

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    FAQ for Universal-Fit Audio & Electronics in 1978 DeVille

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

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

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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.

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