American International SA41069GM 4 x10″ to 6 x 9″ Speaker Adapters

The American International SA41069GM is a pair of heavy-duty 4″ × 10″ to 6″ × 9″ speaker adapter brackets specifically designed for select GM, Chevrolet, Buick, Oldsmobile, and Pontiac vehicles that came factory-equipped with 4×10 dash or rear deck speakers (common in 1980s–2000s full-size sedans, trucks, and SUVs). These precision-molded ABS brackets allow you to upgrade to modern high-performance 6×9 speakers without cutting or modifying the original mounting surface — perfect for dramatically improving sound quality while keeping a 100% factory appearance.