The Scosche SAGMSV656 speaker adapter pair is designed for upgrading your factory speakers to most 6.5” or 6.75” aftermarket speakers with up to a 5 7/8" top mount diameter into the factory speaker locations of select 2014 to 2020 Cadillac, Chevrolet and GMC Full Size Trucks and SUVs. Made from high grade ABS materials to ensure durability and longevity and engineered for a precise fit for your new speaker install. We are so confident in the quality that we back the speaker adapters up with Scosche's Lifetime Tech Support and our Limited Lifetime warranty.