Harmony Audio Compatible GMC S15 Sonoma Single DIN Dash Kit - Easy

In this review of the Harmony Audio Compatible GMC S 15 Sonoma Single DIN dash kit, the bottom line is simple: this package is for DIYers and installers replacing a factory radio in late 1980s to early 1990s GMC S15 and Sonoma trucks who want a straightforward way to fit a modern single DIN stereo. The reviewer found the combined kit - dash faceplates, wiring harness and antenna adapter - saves time and avoids sourcing parts separately, making it the clearest reason to buy for anyone tackling a radio swap on these specific GM models.

Key Features

• Direct vehicle compatibility: Includes harness and dash components designed specifically for GMC S 15 and Sonoma models from 1986 through 1992, reducing fitment guesswork.
• Complete installation package: The bundle contains a Metra multi-kit faceplate, Harmony Audio wiring harness and factory antenna adapter so you get the common parts needed for a single DIN swap in one shipment.
• Multiple faceplate options: The Metra 99-4544 kit supplies several ABS faceplates including flat and extended inserts and an equalizer slot option to match different dash openings and aftermarket head unit profiles.
• OEM bracket compatibility: The multi-kit is designed to use original equipment factory brackets or the included bracket kit when needed, preserving a factory-like mount for the new stereo.
• Wiring harness convenience: Harmony Audio HA-7016771 harness eliminates splicing into the factory loom and clearly maps aftermarket radio connections for a cleaner install.

Who It's For

This kit is aimed at owners of 1986-1992 GMC S 15 and Sonoma trucks who want to replace the factory radio with a single DIN aftermarket stereo without hunting down separate adapters. It is well suited to home mechanics comfortable with dashboard work and basic wiring who value fit and finish and want components matched to their vehicle era.

People who should look elsewhere include those with non-standard dash modifications, owners seeking double DIN installations, or buyers with models outside the stated years. Also, those who prefer fully plug-and-play factory-style harnesses for late-model systems with digital modules may need a different solution.

Pros & Cons

Pros

• Package bundles the key parts needed for a single DIN swap, so fewer missing pieces at install time.
• Faceplate options and included bracket kit offer flexibility to achieve a clean dashboard appearance.
• Wiring harness reduces wiring errors and speeds installation compared with individual wires and connectors.
• Factory antenna adapter preserves antenna connection without cutting factory cables.

Cons

• Kit is limited to single DIN applications and the listed GMC model years, so it is not a universal replacement for other vehicles or double DIN projects.
• Some dash trimming or bracket alignment may still be required depending on the specific head unit chosen.

Specifications

Brand	Harmony Audio / Metra components
Vehicle Fit	GMC S 15 Sonoma 1986-1992
Head Unit Size	Single DIN
Includes	Metra 99-4544 multi-kit, HA-7016771 wiring harness, factory antenna adapter
Faceplate Options	Flat 1/2' insert, 1/2' equalizer option, 1' extension
Bracket Compatibility	Uses OEM brackets or included 02-4544 bracket kit

Our Verdict

For owners of late 1980s to early 1990s GMC S 15 and Sonoma trucks who want a reliable single DIN radio swap, this Harmony Audio package offers clear value by combining the dash trim, wiring harness and antenna adapter needed for a tidy install. It is a practical, cost-effective choice for DIY installers who prioritize fitment and fewer missing parts over universal flexibility.

Frequently Asked Questions

Will this fit a double DIN radio?
No, the kit is intended for single DIN aftermarket stereos and does not provide the larger opening or trim for double DIN units.

Does the harness require cutting factory wires?
The included Harmony Audio harness is designed to connect to aftermarket radios and avoid splicing into the factory loom, though minor adjustments may be necessary in some installations.

Are faceplates included for equalizer-equipped radios?
Yes, the Metra 99-4544 kit includes a 1/2' faceplate option with an equalizer slot provision for radios that need it.