The Genuine BMW Loudspeaker Box Left (TopHifiSystem) - 65139147000 is a high-quality speaker box designed for use in BMW vehicles equipped with the TopHifiSystem. This speaker box is specifically designed for the left side of the vehicle and is compatible with a range of BMW models. It is made with high-quality materials and is designed to provide clear and powerful sound for an enhanced audio experience. This product is an authentic BMW part and is an ideal choice for those looking to upgrade their in-car audio system.