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