Speaker adaptors are needed when you want to replace the original one in you vehicle.
Speaker adaptors are designed to allow you to fit aftermarket speakers into your vehicle. They are easy to fit and ensure they fit securely.
Universal speaker adaptors give you more speaker fitting options.
Specification: Material: Plastic Color: black Outer diameter: 24.4cm x 18cm (9.6" x 7.1") Inner diameter: 22.4cm x 15.3cm (8.8" x 6") Depth: 2.5cm/1" Fits for: 6" x 9" Speakers Application: for automobile's speaker repacking