--- product_id: 4815931 title: "Scosche SHGM03B Car Speaker Wiring Harness Adapter - Compatible with Select 1984-2009 GM Vehicles - Car Audio Wire Harness for Aftermarket Speakers - Sold in Pairs - See Guide Images for Vehicle List" brand: "scosche" price: "FREE" currency: TND in_stock: false reviews_count: 10 url: https://www.desertcart.tn/products/4815931-scosche-shgm03b-car-speaker-wiring-harness-adapter-compatible-with-select store_origin: TN region: Tunisia --- # OEM-grade sound clarity No-cut factory wiring fit Tool-free DIY install Scosche SHGM03B Car Speaker Wiring Harness Adapter - Compatible with Select 1984-2009 GM Vehicles - Car Audio Wire Harness for Aftermarket Speakers - Sold in Pairs - See Guide Images for Vehicle List **Brand:** scosche **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🔊 Upgrade your GM’s sound game—no hacks, just pure audio bliss! ## Quick Answers - **What is this?** Scosche SHGM03B Car Speaker Wiring Harness Adapter - Compatible with Select 1984-2009 GM Vehicles - Car Audio Wire Harness for Aftermarket Speakers - Sold in Pairs - See Guide Images for Vehicle List by scosche - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/4815931-scosche-shgm03b-car-speaker-wiring-harness-adapter-compatible-with-select) ## Best For - scosche enthusiasts ## Why This Product - Trusted scosche brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Plug & Play:** Effortlessly upgrade your GM ride without slicing wires or splicing—just snap and go. - • **Audiophile-Grade Signal:** Experience crystal-clear sound with OEM-quality materials that preserve every beat and note. - • **DIY-Friendly Installation:** No special tools or expertise needed; perfect for pros and weekend warriors alike. - • **Trusted Scosche Reliability:** Backed by lifetime tech support and warranty—confidence that lasts as long as your jams. - • **Universal Speaker Compatibility:** Fits all aftermarket speakers perfectly—versatility that future-proofs your audio setup. ## Overview The Scosche SHGM03B Car Speaker Wiring Harness Adapter is a precision-engineered solution designed for select 1984-2009 GM vehicles. It enables seamless, no-cut installation of aftermarket speakers by connecting directly to factory wiring harnesses. Crafted from OEM-quality materials, it ensures superior sound clarity and signal integrity. Compatible with all car audio speakers, this adapter is perfect for DIY enthusiasts and professionals seeking a hassle-free upgrade backed by Scosche’s lifetime warranty and tech support. ## Description transform your car audio experience with the scosche shgm03b car speaker wiring harness adapters, designed for select general motors vehicles from 1984-2009 . These speaker harness adapters are crafted to fit seamlessly into your vehicle's sound system without compromising on sound quality or electrical integrity. Whether upgrading to new audiophile speakers or integrating a set of powerful component speakers, these adapters ensure effortless installation and superb sound delivery, making them an essential component for any car audio enthusiast. built with compatibility and durability in mind, these adapters connect to your speakers securely, preventing shorts from vibrations while on the road. They support optimal audio performance, bringing out the best in traditional car speakers. Ideal for those looking to enhance their car's acoustic profile, these adapters fit a variety of models and flawlessly work with all car speakers. utilizing these speaker wire harness adapters, you can effortlessly upgrade from factory sound to a superior car audio experience. Whether you're integrating 2-way component speakers for an immersive audio journey or simply upgrading your factory coaxial setup, these adapters provide the versatility and strength required for exceptional sound, making them a perfect addition to any vehicle audio upgrade project.. Review: Quick and easy. - Used for speakers on a 2006 Chevy Express 3500. Easy to install. Review: worked great - fits on my 2012 impala. fit the stock wiring harness just about perfectly- was a bit tight, but went- same on the other ends(s) was a bit tough getting em on the speaker terminals- but again went, with coaxing. Note- the speaker ends--- the wire is split on the speaker end and has a small and large female "speaker" slide on thingie terminals. which matched my new speakers perfect (jbl)...so if your speaker have those standard plain terminals (one small, one large)- you're golden. PSS- i dont think the picture is correct either ## Features - Seamless Integration - SHGM03B speaker wire harness adapter ensures a perfect fit for your vehicle without cutting any factory wiring, making your new aftermarket speaker installation effortless. See fit guide and notes image for vehicle compatibility - Convenient Solution - Scosche SHGM03B speaker installation harness adapter allows a pair of new aftermarket speakers to be quickly and easily installed in select 1984-2009 GM vehicles using the factory speaker wire harness without cutting any wires - Enhanced Sound Quality - Made with OEM quality materials, this speaker wire harness delivers superior signal clarity, enhancing the depth and richness of your car stereo sound; experience music as it was intended, with every note and beat crystal clear - Easy Installation - No special tools needed when installing SHGM03B speaker installation harness. Scosche speaker harness adapters use the existing vehicle connectors; no cutting or splicing required. Perfect for DIY enthusiasts and professionals alike - Universal Speaker Fitment - Compatible with all car audio speakers, Scosche SHGM03B speaker install harness adapts effortlessly to a variety of systems, making it a versatile choice for car audio enthusiasts looking to enhance their listening experience - Trusted Brand - Backed by Scosche's Limited Warranty and Lifetime Tech Support. Scosche, known for its commitment to quality car audio solutions, means you can trust the Scosche SHGM03B speaker harness adapter to deliver exceptional performance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001TDKJUI | | Best Sellers Rank | #149 in Car Speaker Wiring Harnesses #1,873 in Car Audio & Video Wiring Harnesses | | Brand | Scosche | | Brand Name | Scosche | | Cable Type | Speaker Wire | | Connector Type | Speaker Connectors | | Customer Reviews | 4.3 out of 5 stars 504 Reviews | | Global Trade Identification Number | 00033991004887 | | Included Components | SHGM03B | | Item Dimensions | 0.5 x 4.38 x 7.5 inches | | Item Type Name | SCOSCHE SHGM03B Car Speaker Wiring Harness Connector Kit Compatible with SELECT 1985-Up General Motors Vehicles | | Item Weight | 18.14 g | | Item dimensions L x W x H | 0.5 x 4.38 x 7.5 inches | | Manufacturer | SCOSCHE | | Material | Acrylonitrile Butadiene Styrene | | Material Type | Acrylonitrile Butadiene Styrene | | Model | SHGM03B | | Number of Items | 1 | | Part Number | SHGM03B | | UPC | 033991004887 | | Unit Count | 2 Count | | Warranty Description | Backed by Scosche’s Lifetime Tech Support and Lifetime Limited Warranty | ## Product Details - **Brand:** Scosche - **Connector Type:** Speaker Connectors - **Item Weight:** 0.04 Pounds - **Item dimensions L x W x H:** 0.5 x 4.38 x 7.5 inches - **Material:** Acrylonitrile Butadiene Styrene ## Images ![Scosche SHGM03B Car Speaker Wiring Harness Adapter - Compatible with Select 1984-2009 GM Vehicles - Car Audio Wire Harness for Aftermarket Speakers - Sold in Pairs - See Guide Images for Vehicle List - Image 1](https://m.media-amazon.com/images/I/61gf+-Aac+L.jpg) ![Scosche SHGM03B Car Speaker Wiring Harness Adapter - Compatible with Select 1984-2009 GM Vehicles - Car Audio Wire Harness for Aftermarket Speakers - Sold in Pairs - See Guide Images for Vehicle List - Image 2](https://m.media-amazon.com/images/I/616R6N+0nML.jpg) ![Scosche SHGM03B Car Speaker Wiring Harness Adapter - Compatible with Select 1984-2009 GM Vehicles - Car Audio Wire Harness for Aftermarket Speakers - Sold in Pairs - See Guide Images for Vehicle List - Image 3](https://m.media-amazon.com/images/I/717F6rxfxZL.jpg) ![Scosche SHGM03B Car Speaker Wiring Harness Adapter - Compatible with Select 1984-2009 GM Vehicles - Car Audio Wire Harness for Aftermarket Speakers - Sold in Pairs - See Guide Images for Vehicle List - Image 4](https://m.media-amazon.com/images/I/81ml0rxA7pL.jpg) ![Scosche SHGM03B Car Speaker Wiring Harness Adapter - Compatible with Select 1984-2009 GM Vehicles - Car Audio Wire Harness for Aftermarket Speakers - Sold in Pairs - See Guide Images for Vehicle List - Image 5](https://m.media-amazon.com/images/I/81scfifGKqL.jpg) ## Available Options This product comes in different **Customer Package Type, Style** options. ## Questions & Answers **Q: Does it fit a 07 Chevy Silverado** A: I assume it will. Since I drive a 2007 GMC Yukon, which essentially uses the same components. It made things so much easier. **Q: Do they fit 2008 chevrolet trailblazers** A: Yes **Q: Will it fit 2001 chevy Tahoe?** A: I would think it would, for my 2001 Chevy Silverado **Q: Will this fit a 2005 Cadillac deville?** A: No, SHGM03B only fits 1988-1995 Cadillac Deville. Scosche does not offer a speaker wiring harness for your model year. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quick and easy. *by M***E on June 5, 2026* Used for speakers on a 2006 Chevy Express 3500. Easy to install. ### ⭐⭐⭐⭐⭐ worked great *by J***E on February 15, 2012* fits on my 2012 impala. fit the stock wiring harness just about perfectly- was a bit tight, but went- same on the other ends(s) was a bit tough getting em on the speaker terminals- but again went, with coaxing. Note- the speaker ends--- the wire is split on the speaker end and has a small and large female "speaker" slide on thingie terminals. which matched my new speakers perfect (jbl)...so if your speaker have those standard plain terminals (one small, one large)- you're golden. PSS- i dont think the picture is correct either ### ⭐⭐⭐⭐⭐ Good buy *by T***H on May 7, 2026* Perfect fit, tight and snug, and sounds GREAT with my kenwood speakers!!! ## Frequently Bought Together - SCOSCHE SHGM03B Car Speaker Wiring Harness Connector Kit Compatible with SELECT 1985-Up General Motors Vehicles - SCOSCHE SAGMHR634B 2007 to 2015 Select GM 6.5” or 6.75” Speaker Adapter, Pair - Kenwood 6-1/2" 300W Max (60W RMS per Pair) 6.5" KFC 2-Way Sport Series Flush Mount Car Audio Door Coaxial Speakers --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/4815931-scosche-shgm03b-car-speaker-wiring-harness-adapter-compatible-with-select](https://www.desertcart.tn/products/4815931-scosche-shgm03b-car-speaker-wiring-harness-adapter-compatible-with-select) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-03*