---
product_id: 208443513
title: "70-1677-1 Wiring Harness for Select 1978-1993 GM/Chevrolet Vehicles"
brand: "metra"
price: "R681"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/208443513-70-1677-1-wiring-harness-for-select-1978-1993-gm
store_origin: ZA
region: South Africa
---

# OEM-style direct plug-in 12-pin + 2-pin plug combo Faster radio install 70-1677-1 Wiring Harness for Select 1978-1993 GM/Chevrolet Vehicles

**Brand:** metra
**Price:** R681
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your classic GM ride with plug-and-play perfection!

## Quick Answers

- **What is this?** 70-1677-1 Wiring Harness for Select 1978-1993 GM/Chevrolet Vehicles by metra
- **How much does it cost?** R681 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/208443513-70-1677-1-wiring-harness-for-select-1978-1993-gm)

## Best For

- metra enthusiasts

## Why This Product

- Trusted metra brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual-Plug Design:** One 12-pin and one 2-pin plug ensure perfect compatibility with select 1978-1993 GM/Chevrolet models.
- • **Lightweight & Compact:** At just 45g and compact dimensions, it fits discreetly without adding bulk.
- • **OEM-Style Reliability:** Maintains factory wiring integrity for a clean, professional installation every time.
- • **Plug & Play Precision:** Seamlessly connects to your GM/Chevy’s original wiring—no guesswork, no cutting.
- • **Upgrade Without Compromise:** Easily install aftermarket radios while preserving steering wheel controls and vehicle functions with optional adapters.

## Overview

The Metra 70-1677-1 Wiring Harness is a precision-engineered adapter designed for select 1978-1993 GM/Chevrolet vehicles. Featuring a 12-pin and 2-pin plug, it enables quick, OEM-style installation of aftermarket radios without cutting factory wires, preserving vehicle functions and ensuring a clean, professional upgrade.

## Description

Install a new car radio faster with this wiring harness that plugs right into the vehicle's connectors, allowing you to hook up the radio to the vehicle's electrical system. On one side, the wiring harness is color-coded with wires that you'll connect or solder into the aftermarket radio/receiver. The other side has a vehicle-specific adapter that connects directly to the original radio connectors for a quicker installation without cutting each of the wires. Keep in mind that you may need additional parts to complete your installation, including a dash kit, antenna adapter, and, depending on your vehicle, a special interface adapter to retain audio controls on your steering wheel or other important vehicle functions like navigation, video, and more. Look up your vehicle for more information.

## Features

- Car Harness for select 1973-1993 GM/Chevrolet Vehicles
- Plugs into car harness
- One 12-pin plug and one 2-pin plug
- OEM Style
- Allows for the installation of an aftermarket radio using the existing factory wiring and connectors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Department | unisex-adult |
| Manufacturer | Sound Around |
| Item model number | 70-1677-1 |
| Product Dimensions | 20.32 x 12.7 x 5.08 cm; 45.36 g |
| ASIN | B0002BEXB4 |

## Product Details

- **Brand:** Metra
- **Material:** computer
- **Item dimensions L x W x H:** 20.3 x 12.7 x 5.1 centimetres
- **Item weight:** 0.1 Pounds
- **Connector type:** 12 Pin

## Images

![70-1677-1 Wiring Harness for Select 1978-1993 GM/Chevrolet Vehicles - Image 1](https://m.media-amazon.com/images/I/51TJq+5pQhL.jpg)
![70-1677-1 Wiring Harness for Select 1978-1993 GM/Chevrolet Vehicles - Image 2](https://m.media-amazon.com/images/I/71oitfY0HcL.jpg)
![70-1677-1 Wiring Harness for Select 1978-1993 GM/Chevrolet Vehicles - Image 3](https://m.media-amazon.com/images/I/61v7p+5AGsL.jpg)
![70-1677-1 Wiring Harness for Select 1978-1993 GM/Chevrolet Vehicles - Image 4](https://m.media-amazon.com/images/I/719luASSXeL.jpg)
![70-1677-1 Wiring Harness for Select 1978-1993 GM/Chevrolet Vehicles - Image 5](https://m.media-amazon.com/images/I/61iD7irsdXL.jpg)

## Frequently Bought Together

- METRA Ltd 70-1677-1 78 - 91 Gm Vehicle Harness
- Metra Electronics 87-99-3052 GM Truck 73-87 Din Conversion, Black
- VIAGL Speaker Brackets Behind Seat 6x9 fit for Chevy C10 1973-1987 Squarebody for 6x9 Speaker, Black

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**Shop now:** [https://www.desertcart.co.za/products/208443513-70-1677-1-wiring-harness-for-select-1978-1993-gm](https://www.desertcart.co.za/products/208443513-70-1677-1-wiring-harness-for-select-1978-1993-gm)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-06-20*