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Metra 70-1858

Connects an Aftermarket Receiver to Factory Plug on Select 1988-2002 GM Vehicles

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List price $19.99

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$3.99

with warranty

Order within 30 hrs 1 min to ship 5/4

Arrives by Monday, May 11 to zip 98144

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In Stock

Arrives by Mon, May 11

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Metra Audio Store

Product Features:

  • Plugs into car harness at radio
  • Power/4-Speaker
  • 21-Pin plug
  • Used for Installing an Aftermarket Receiver to factory plug
  • Allows for the installation of an aftermarket radio using the existing factory wiring and connectors
  • No need to cut or splice in factory wiring
  • Compatible with select 1988-2002 GM Vehicles

Connections:

  • Yellow 12V Constant
  • Red 12V Accessory
  • Black - Ground
  • Orange Dash Light Dimmer/Illumination
  • Green Left Rear Speaker (+)
  • Green with Black Stripe Left Rear Speaker (-)
  • White Left Front Speaker (+)
  • White with Black Stripe Left Front Speaker (-)
  • Purple Right Rear Speaker (+)
  • Purple with Black Stripe Right Rear Speaker (-)
  • Gray Right Front Speaker (+)
  • Gray with Black Stripe Right Front Speaker (-)

Compatibility List:

  • Buick:
    • 1988 - 1996 Century
    • 1988 - 1990 Electra
    • 1988 - 1994 LeSabre
    • 1988 - 1994 Regal
    • 1986 - 1995 Riviera
    • 1991 - 1994 Roadmaster
    • 1988 - 1989 Skyhawk
    • 1987 - 1995 Skylark
  • Cadillac:
    • 1988 - 1991 Deville
    • 1988 - 1991 El Dorado
    • 1999 - 2002 Escalade
    • 1988 - 1993 Fleetwood
    • 1988 - 1994 Sedan Deville
    • 1988 - 1991 Seville
  • Chevrolet:
    • 1991 - 2005 Astro
    • 1988 - 1997 Beretta
    • 1992 - 1994 Blazer
    • 1988 - 2002 1500, 2500, 3500 Full-Size Truck
    • 1990 - 2002 Camaro
    • 1991 - 1997 Caprice
    • 1991 - 1999 Cavalier
    • 1990 - 2002 Corvette
    • 1994 - 1996 Impala
    • 1997 - 2000 Malibu
    • 1995 - 1999 Monte Carlo
    • 1990 - 2002 S-10

Harness Features

Vehicle Sound System
This refers to what kind of sound system the vehicle has. Premium audio systems are generally name brand systems (such as JBL, Bose, Rockford Fosgate, etc) that have been installed inside a vehicle when it leaves the factory. Often they more advanced systems, complex wiring, factory amplifiers, and other features that can make installing aftermarket component difficult.
Standard Sound
Main Harness Function
Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.
Connect/Install an Aftermarket Car Stereo
Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.
Buick
Cadillac
Chevrolet
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Buick Century
Buick Lesabre
Buick Regal
Buick Riviera
Buick Roadmaster
Cadillac Deville
Cadillac El Dorado
Cadillac Escalade
Cadillac Fleetwood
Cadillac Seville
Chevy Astro
Chevy Beretta
Chevy Blazer
Chevy Camaro
Chevy Caprice
Chevy Cavalier
Chevy Corvette
Chevy Full Size Truck
Chevy Impala
Chevy Malibu
Chevy Monte Carlo
Chevy S-10

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
94%
4 Star
0%
3 Star
6%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
4.8
Features
4.7
Design
4.8
Usability
4.8
shawn

washington, DC

Overall
Durability
Value
Features
Design
Usability
GReat Fit

May 27, 2014

it was a great fit. i was able to install the system

32 of 53 found this helpful

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Kristian

Wichita, KS

Overall
Durability
Value
Features
Design
Usability
Fit well

January 26, 2014

The unit works well, as always the customer service was awesome and the shipping was pretty quick. I couldn't be any happier with everything.

25 of 44 found this helpful

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Darrell

West Burlington, IA

Overall
Durability
Value
Features
Design
Usability
Great Value

August 23, 2012

Product worked and fit the way it was stated I would recommend this to a friend

26 of 46 found this helpful

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Timmy

Corsicana, TX

Overall
Durability
Value
Features
Design
Usability
Perect fit.

October 13, 2014

Plugged in directly to factory plug. Simple instalation, and recommended for anyone.

22 of 40 found this helpful

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Derek

Canada

Overall
Durability
Value
Features
Design
Usability
worked for my 1997 blazer

August 31, 2014

Makes installing a stereo go smoothly and prevents you from having to cut off the stock harness

27 of 52 found this helpful

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shawn

washington, DC

Overall
Durability
Value
Features
Design
Usability
GReat Fit

May 27, 2014

it was a great fit. i was able to install the system

23 of 44 found this helpful

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Mike D

Fort Lauderdale, FL

Overall
Durability
Value
Features
Design
Usability
Works

June 21, 2013

Worked great...I wish it would of had the pin hooked up for the steering wheel control too though. Other than that worked as advertised and no complaints.

22 of 42 found this helpful

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david

murrells inlet, SC

Overall
Durability
Value
Features
Design
Usability
metra 70-1858

December 30, 2014

everything works as it should. hope all stereos have these parts

20 of 39 found this helpful

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amateur installer

Auburnm WA

Overall
Durability
Value
Features
Design
Usability
Great item and a great price!

March 1, 2011

Fit perfectly and made my install a breeze!
Thank you so much - a pro couldn't have done it better.

20 of 40 found this helpful

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Mike

San Antonio, TX

Overall
Durability
Value
Features
Design
Usability
Fits 1995 Chevy Suburban

April 19, 2010

Used to connect stereo from another make of car to 1995 Chevy Suburban. Used another Metra connector on the other end. Works good.

20 of 40 found this helpful

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mark

Peterson Airforce Base, CO

Overall
Durability
Value
Features
Design
Usability
exactly what i wanted

December 19, 2008

It does exactly what i wanted it to, if i want i can pull out my new deck and swap it for my old one with out having to redo or change any of the wires, just unplug the new and plug on the old (after proper installation of course)

21 of 42 found this helpful

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Michael

Del Rio, TX

Overall
Durability
Value
Features
Design
Usability
Gret Value!

December 8, 2014

This was 50% off retail, Have purchased many products from Sonic, will continue to do so.

22 of 45 found this helpful

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Sam

harrisonville, MO

Overall
Durability
Value
Features
Design
Usability
Install plug

November 29, 2013

No problems works great for my 95 s10 plug and play.

20 of 41 found this helpful

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Gregory

Sandy, UT

Overall
Durability
Value
Features
Design
Usability
Gregt Business to Deal With!

March 23, 2015

We have had no issues with Sonic Electronix until recently. We had moved from my previous address 3 years back and UPS not Sonic Electronix shipped the item to the old address rather than the current address. Having a conversation with Sonic Electronix quickly resent me the package and the situation was under control. Sonic Electronix has been good business people and highly recommend them to business small or large.

4 of 10 found this helpful

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Sean

Miami, FL

Overall
Durability
Value
Features
Design
Usability
Don't hack your wire harness! Get this!

November 1, 2011

This made the install so much easier! This is a must have. Everything is labeled and the instructions/diagrams were very informative. No need to struggle with cutting,crimping,soldering, or heat shrinking in the vehicle. You can do everything comfortably at a table or workbench, then plug and play. Great product!

19 of 40 found this helpful

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Gary

Hampton, VA

Overall
Durability
Value
Features
Design
Usability
Great wiring harness

September 25, 2012

Easy to use wiring harness. Very simple to hook up.

19 of 41 found this helpful

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Browse 2 questions and 5 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
To stop cutting back my factory wires.
Zachary D on Apr 3, 2015
It looks to fit my application. I have used these products before.
David P on Dec 17, 2014
replacing head unit
Robert R on Jan 30, 2015
97 Chev. 1500
Ryan K on Oct 28, 2014
will this harness fit a 1989 cadillac fleetwood 60 special with the bose system? looks like the four plugs from the stock stereo will fit this harness.
john c on Mar 20, 2015
Best Answer: Hello John,

The pin/connector is correct. However, Metra has recommended that you also use a HiLow Converter to send the OEM amplifier a throttled signal, as to not harm it with a HIGH level signal. The Scosche OEA4 is a great option.

http://www.sonicelectronix.com/item_10061_Scosche-OEA4.html
Reply (1) · Report · Customer SStaff on Mar 21, 2015
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

70-1858

UPC

086429002573

Weight

0.13lbs

Internal SKU

met-701858

Internal Product ID

12417

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Metra 70-1858