6x9 Front + 6in/6.5in Rear Car Speaker Mount Adapter Plates - Vehicle

In this review the ASC Premium speaker install adapter plates are assessed for drivers who want to fit aftermarket speakers into factory door locations on recent GM and GMC trucks and SUVs. The bottom line is straightforward: these brackets provide a durable, water resistant mounting solution that simplifies converting stock openings to accept 6x9 front and 6in/6.5in rear speakers. Installers who value fit and ease of installation will find the kit a practical choice for a four-door swap.

Key Features

• Complete four-door kit: Includes two front plates and two rear plates plus four speaker wire harnesses so all doors are covered in one purchase.
• Dual size support: Front brackets accept 6x9 speakers while rear brackets accommodate 6in, 6.5in, or 6.75in speakers to match common aftermarket speaker sizes.
• Water resistant construction: Sturdy plastic resists moisture in door cavities to protect speaker components and maintain installation integrity.
• Factory location fit: Made to fit factory door openings on select Chevrolet and GMC models to reduce trimming and modification during installation.
• Integrated wire connectors: Included harnesses help speed wiring and avoid cutting factory harnesses when connectors match.

Who It's For

This product is intended for owners of compatible Chevrolet and GMC trucks and SUVs who want to upgrade to aftermarket speakers without extensive door modification. It is well suited to DIY installers and professional shops who need a repeatable mounting solution for the 2014-2019 Silverado and Sierra series, 2015-2018 Colorado and Canyon, and 2015-2017 Suburban, Tahoe, Yukon and Yukon XL.

People who should look elsewhere are owners of nonlisted model years or vehicles with nonstandard door panels, and anyone who requires metal mounting plates or custom enclosures for highpower competition speakers.

Pros & Cons

Pros

• Good fit for listed GM and GMC models, making speaker swaps faster across four doors.
• Durable, water resistant plastic construction helps protect speakers from moisture inside the door.
• Includes wire harnesses so installers can avoid reusing or splicing factory connectors in many cases.

Cons

• Some customers reported occasional alignment concerns and a perception of value that varies by installer expectations.
• There are isolated reports of wire crimp retention issues, so verify connector crimps before final assembly.

Specifications

Our Verdict

The ASC Premium adapter plates are a sensible, cost-effective option for anyone upgrading door speakers on compatible Chevrolet and GMC models. They save time by providing a ready-made mounting solution and include harnesses to simplify wiring. Buyers should check crimps and alignment during installation, but for most DIY installers and shops this kit offers reliable function and clear value.

Frequently Asked Questions

Will these brackets fit my Silverado or Sierra?
They are made for Silverado 1500 and Sierra 1500 (2014-2019) and 2500/3500 (2015-2019) as listed; confirm your model year matches the product compatibility list.

Are the wire harnesses reusable with factory wiring?
The kit includes harnesses that match many factory connectors, but installers should test fit and crimps to ensure a secure connection before final reassembly.

Do these provide weather protection for speakers?
The plates are made from water resistant plastic which helps protect speaker areas inside the door, though speakers themselves still need appropriate grilles or covers for full protection.