Radio Replacement Harness - GM 1973-1993 — 70-1677-1

Replace a compatible factory radio connection without cutting the vehicle’s original radio wires. The 70-1677-1 harness connects the vehicle’s original radio plugs to color-coded wires for an aftermarket radio.

Product Overview

This GM 1973–1993 radio replacement harness provides electrical power for a four-speaker connection. Connect or solder its color-coded wires to the aftermarket radio or receiver.

Key Features & Benefits

• Vehicle-side adapter: Plugs into the original radio connectors, avoiding the need to cut each factory wire.
• Color-coded radio wires: Helps you identify the harness wires when connecting them to the aftermarket receiver.
• Four-speaker connection: Provides electrical power for a radio with a four-speaker connection.
• Installation help: Tech support is available seven days a week.

Technical Specifications

• Product: Radio replacement harness
• Model: 70-1677-1
• Vehicle range: GM 1973–1993
• Radio connection: Vehicle-specific adapter plugs into original radio connectors; color-coded wires connect to the aftermarket radio
• Speaker connection: Four-speaker connection

Why Choose This Product?

The vehicle-side adapter connects at the original radio plugs, while the color-coded leads provide the connection point for an aftermarket receiver. This setup avoids cutting each factory radio wire during installation.

Installation & Compatibility Notes

Check your vehicle’s specific requirements before installation. A dash kit or antenna adapter may also be needed. Depending on the vehicle, a special interface adapter may be required to retain steering-wheel audio controls or functions such as navigation and video.

Connect or solder the color-coded wires to the aftermarket radio as required. Tech support is available seven days a week for installation help.

Frequently Asked Questions

What does the 70-1677-1 harness connect?

Its vehicle-specific adapter plugs into the vehicle’s original radio connectors. Its color-coded wires connect to the aftermarket radio or receiver.

Does installation require cutting the factory radio wires?

The harness plugs into the original radio connectors, so there is no need to cut each factory wire.

What speaker connection does this harness provide?

It provides electrical power for a four-speaker connection.

Will this harness retain steering-wheel audio controls?

A special interface adapter may be required, depending on the vehicle, to retain steering-wheel audio controls and other functions.

Could I need other parts to complete the installation?

A dash kit or antenna adapter may be needed. Check your vehicle’s requirements to identify the parts needed for your installation.

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