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1978 GMC C2500 Pickup

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 GMC C2500 Pickup

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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Install Bay IBSS2L

7-Pin On/Off Panel Switch with LED Indicator

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7-Pin On/Off Panel Switch with LED Indicator

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

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List price $29.99
-50% $14.99

In stock

• For Ultra-luxury high-end vehicles
• 12-24V universal usage
• Environmentally friendly and flame retardant materials
• Suitable for refit control of all equipment in the car
• Output short-circuit protection, overload protection
• Suitable for installation and use of all 12/24v battery vehicles

Install Bay MIBRSSG16

Universal 16mm Stainless Momentary Green LED Switch with Harness

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Universal 16mm Stainless Momentary Green LED Switch with Harness

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• Green LED illuminated ring

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Universal Icon Universal – fits most vehicles.

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List price $20.98
-33% $13.99

In stock

Only 2 Left!

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• Green LED illuminated ring

Heise HE-SWP8

8 Gang Switch Panel System

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8 Gang Switch Panel System

• Control up to 8 different auxiliary LED lights or electrical devices
• Included stickers allow panel customization
• Blue LED backlighting

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Universal Icon Universal – fits most vehicles.

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List price $474.99
-10% $426.99

In stock.

• Control up to 8 different auxiliary LED lights or electrical devices
• Included stickers allow panel customization
• Blue LED backlighting

Install Bay MIBRSSR19

Universal 19mm Stainless Momentary Red LED Switch with Harness

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Universal 19mm Stainless Momentary Red LED Switch with Harness

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 19mm (3/4") mounting hole size
• Red LED illuminated ring

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

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List price $24.99
-12% $21.99

Available

Ships in 10-14 days

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 19mm (3/4") mounting hole size
• Red LED illuminated ring

Install Bay MIBRSSG19

Universal 19mm Stainless Momentary Green LED Switch with Harness

MIBRSSG19 big
Go to item page Right Arrow Icon of Right Arrow

Universal 19mm Stainless Momentary Green LED Switch with Harness

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 19mm (3/4") mounting hole size
• Green LED illuminated ring

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $14.98
-33% $9.99

In stock

Only 2 Left!

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 19mm (3/4") mounting hole size
• Green LED illuminated ring

Install Bay MIBRSSW16

Universal 16mm Stainless Momentary White LED Switch with Harness

MIBRSSW16 big
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Universal 16mm Stainless Momentary White LED Switch with Harness

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• White LED illuminated ring

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $22.99
-13% $19.99

Available

Ships in 10-14 days

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• White LED illuminated ring

Install Bay MIBRSSB19

Universal 19mm Stainless Momentary Blue LED Switch with Harness

MIBRSSB19 big
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Universal 19mm Stainless Momentary Blue LED Switch with Harness

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 19mm (3/4") mounting hole size
• Blue LED illuminated ring

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $24.99
-12% $21.99

Available

Ships in 10-14 days

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 19mm (3/4") mounting hole size
• Blue LED illuminated ring

Install Bay MIBRBSB16

Universal 16mm Black Momentary Blue LED Switch with Harness

MIBRBSB16 big
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Universal 16mm Black Momentary Blue LED Switch with Harness

• Black momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• Blue LED illuminated ring

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $23.99
-13% $20.99

In stock

Only 1 Left!

• Black momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• Blue LED illuminated ring

Install Bay MIBRSSR16

Universal 16mm Stainless Momentary Red LED Switch with Harness

MIBRSSR16 big
Go to item page Right Arrow Icon of Right Arrow

Universal 16mm Stainless Momentary Red LED Switch with Harness

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• Red LED illuminated ring

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $22.99
-13% $19.99

In stock

Only 2 Left!

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• Red LED illuminated ring

Install Bay MIBRSSY16

Universal 16mm Stainless Momentary Yellow LED Switch with Harness

MIBRSSY16 big
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Universal 16mm Stainless Momentary Yellow LED Switch with Harness

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• Yellow LED illuminated ring

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$9.99

Available

Ships in 10-14 days

• Momentary switch with harness
• Rated at 5 amps
• IP67 waterproof rating
• 16mm (5/8") mounting hole size
• Yellow LED illuminated ring

Heise HE-RRS

Universal 20 Amp Red Round Rocker Switch - 5 Pack

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Universal 20 Amp Red Round Rocker Switch - 5 Pack

• Protect switch from dust and water intrusion
• Same switch as used in the Heise relay harnesses

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $31.99
-13% $27.99

In stock.

• Protect switch from dust and water intrusion
• Same switch as used in the Heise relay harnesses

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    FAQ for Universal-Fit Audio & Electronics in 1978 C2500 Pickup

    Q: Can I upgrade or change the Universal-Fit Audio & Electronics in 1978 GMC C2500 Pickup?

    A: Yes this page includes all the best Universal-Fit Audio & Electronics that work in your C2500 Pickup.

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    Identify your vehicle and submodel details
    • Owner's manual
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    • 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.