Metra 70-1858 Receiver Wiring Harness for Select GMC Chevrolet 1985-2005

Metra 70-1858 Receiver Wiring Harness for Select GMC Chevrolet 1985-2005

The Metra 70-1858 receiver wiring harness is engineered to make aftermarket stereo installation in GM vehicles from 1985 through 2005 simple, reliable, and professional. With its 21-pin connector and color-coded wires, this harness eliminates the need for cutting or splicing, preserving your factory wiring while ensuring a secure and stable connection. Built from durable copper conductors with PVC insulation, the 70-1858 provides long-lasting performance and maintains optimal signal transfer for your car audio system. Ideal for both DIY installers and professionals, this harness delivers a straightforward solution for upgrading your factory radio to an aftermarket unit.

• Plug-and-Play Design - Connects directly to the vehicle’s factory harness without cutting or splicing.
• 21-Pin Connector - Compatible with a wide range of GM vehicles from 1985-2005.
• Color-Coded Wires - Simplifies installation and ensures proper wire matching for power, ground, and speakers.
• Durable Build - Copper conductors with PVC insulation for long-term reliability and consistent performance.
• Vehicle-Specific Fit - Designed for select Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, and Saturn models.
• Aftermarket Ready - Perfect for installing aftermarket stereos while keeping factory wiring intact.

• Brand: Metra
• Model: 70-1858
• Type: Wiring Harness
• Color: Multicolor
• Connector Type: 21 Pin Connector
• Cable Length: 5 Inch
• Mounting Type: Car Mount
• Voltage: 12V
• Material: Copper with PVC Insulation
• Features: Color-coded wires, Plug-and-Play design, Vehicle-specific adapter plug
• Compatibility: Aftermarket Radio Installation
• Warranty: 1 Year

The Metra 70-1858 receiver wiring harness ensures a seamless transition from factory to aftermarket audio, making it the go-to choice for installers who want precision, efficiency, and durability. By preserving the vehicle’s factory wiring, it guarantees a clean and professional installation, letting you enjoy enhanced sound without unnecessary complications.

About Metra

Metra Electronics has been the industry leader in car audio installation accessories for over 70 years. Known as “The Installer’s Choice,” Metra designs high-quality solutions that simplify upgrades while maintaining factory integrity. From wiring harnesses to dash kits, Metra products are trusted worldwide for their reliability and precision engineering.