GMK421

Upgrade your vehicle's factory radio with the GMK421 installation kit. Designed for select General Motors vehicles, this versatile dash kit allows for the installation of a Single ISO aftermarket stereo with a storage pocket or a Double DIN multimedia receiver. Engineered for a factory-quality fit and finish, the GMK421 provides a clean, professional appearance while making it easy to add modern audio and infotainment features to your vehicle.

Features

• Supports Single ISO radio installation with storage pocket
• Accommodates Double DIN aftermarket receivers
• Factory-style fit and finish
• Precision-engineered for a secure, gap-free installation
• Durable automotive-grade ABS plastic construction
• Factory-matched texture and color
• Ideal for multimedia, navigation, Bluetooth®, Apple CarPlay®, and Android Auto™ receivers
• Includes mounting brackets and installation hardware
• Designed for professional and DIY installations

Specifications

• Part Number: GMK421
• Radio Compatibility: Single ISO with Pocket or Double DIN
• Color: Black
• Material: High-Impact ABS Plastic
• Finish: Factory-Matched Texture
• Pocket Included: Yes
• Mounting Style: Dash Installation Kit
• Hardware Included: Yes
• Installation Instructions: Included
• Approximate Shipping Weight: 1 lb.

Common Vehicle Applications

Compatible with select General Motors vehicles including certain:

• Chevrolet cars, trucks, and SUVs
• GMC trucks and SUVs
• Cadillac vehicles
• Buick vehicles
• Oldsmobile vehicles
• Pontiac vehicles

Vehicle compatibility varies by year, make, model, and factory radio configuration. Verify fitment before ordering.

Package Contents

• Main dash panel
• Single ISO trim ring
• Double DIN trim panel
• Storage pocket
• Mounting brackets
• Mounting hardware
• Installation instructions