Harmony Audio Compatible with Chevy S 10 Blazer 88 89 Single DIN

Our review of the Harmony Audio Compatible with Chevy S 10 Blazer 88 89 Single DIN Stereo Harness Kit finds it most useful for DIY installers and professional shops working on late 1980s Chevy S 10 and Blazer models. The bottom line: this package bundles the correct wiring harness, a Metra multi-kit dash adapter and an antenna adapter so the most common compatibility hurdles are covered in one purchase. For installers who need a clean Single DIN conversion and retention of factory brackets or equalizer slot provision, this kit removes guesswork and saves time on bench wiring and dash fitting.

Key Features

• Complete harness included: The Harmony Audio HA-7016771 wiring harness provides direct connections for select 1978-1993 GM and Chevrolet vehicles so wiring is straightforward and reduces splicing time.
• Dash adapter versatility: The Metra 99-4544 GM Premium Multi-Kit offers four ABS faceplates and a bracket option to adapt from 2-shaft to DIN openings for a clean dash appearance.
• Equalizer slot provision: One of the faceplates includes an equalizer slot option so installations that require extra space or equipment can be accommodated without modification.
• Antenna compatibility: The package includes a factory radio to aftermarket antenna adapter to maintain radio reception when fitting an aftermarket head unit.
• OEM bracket use: The adapter is designed to accept original equipment factory brackets or the included 02-4544 bracket kit when OEM brackets are not usable.

Who It's For

This kit is aimed at car owners, custom installers, and restoration shops working specifically on Chevy S 10 and Blazer models from 1988 and 1989, and other compatible GM vehicles listed for the included harness. It is a practical choice if you want a Single DIN head unit, need the correct harness for factory connectors, and prefer using a manufacturer-recommended dash adapter rather than cutting or fabricating plastic.

Those who should look elsewhere include buyers seeking a Double DIN solution or a head unit bundle with screen and electronics. Also, if a vehicle falls well outside the stated model years for the harness, confirm fitment before purchase as this package targets select 1978-1993 GM applications and the Metra adapter covers 1982-2005 families.

Pros & Cons

Pros

• Includes the Harmony wiring harness tailored to older GM wiring for a neater, safer install than cutting factory wires.
• Metra multi-kit provides multiple faceplate options and a bracket kit to achieve a factory-like fit for Single DIN radios.
• Antenna adapter ensures the aftermarket radio will connect to the factory antenna without custom adapters.
• Using OEM bracket compatibility helps preserve dash integrity and appearance during installation.

Cons

• Not suitable for Double DIN head units; this package is focused on Single DIN conversions.
• Fitment still requires verifying vehicle year and dash variations even within the supported GM range.

Specifications

Product type	Single DIN stereo harness and dash kit package
Includes	Metra 99-4544 multi-kit, Harmony HA-7016771 harness, antenna adapter
Compatible vehicles	Select 1978-1993 GM / Chevrolet and 1982-2005 GM families (per adapter)
Faceplate options	Four ABS plastic faceplates including equalizer slot and extensions
Bracket option	Uses OEM brackets or included 02-4544 bracket kit
Antenna	Factory radio to aftermarket antenna adapter included

Our Verdict

The Harmony Audio Single DIN harness and Metra dash kit is a practical, time-saving package for anyone installing an aftermarket radio into late 1980s Chevy S 10 or Blazer dashboards. It combines the correct wiring harness, multiple faceplate options, and an antenna adapter so installations look and function like factory work. For Single DIN upgrades on supported GM vehicles, this kit is good value and reduces common compatibility issues.

Frequently Asked Questions

Does this include the wiring harness for Chevy S 10 and Blazer?
Yes, the package contains the Harmony HA-7016771 wiring harness that fits select 1978-1993 GM and Chevrolet vehicles including the S 10 and Blazer years listed.

Will it fit a Double DIN radio?
No, the Metra 99-4544 and the included faceplates are intended for Single DIN installations and are not suitable for Double DIN head units.

Is the antenna connector included?
Yes, a factory radio to aftermarket antenna adapter is included so the head unit can connect to the factory antenna.