Upgrade the sound system of your 1999 Buick Regal with this OEM Rear Parcel Shelf Speaker Cover. Made of durable plastic material and finished in a sleek matte gray color, it is designed to fit either the left or right speaker placement on the rear of your vehicle. The speaker cover comes with clips for easy installation and features an easy-to-clean surface. This vintage part is compatible with Buick Regal models from 1997 to 2004, with OE/OEM part numbers 19 97 98 99 20 00 01 02 03 04. It is not a universal fitment item and is intended for vehicles with rear speaker placements only. Add a touch of style to your car's interior with this functional and sleek speaker cover.