A storage compartment for mounting on a trim panel of an automobile door. The trim panel includes an aperture configured to receive a speaker assembly. The storage compartment includes a rear wall, a side wall bounding the rear wall to define a storage cavity and having a perimeter which is complementary in shape to the aperture. A retaining wall having a shape which is substantially similar to a portion of the aperture is attached to a portion of the side wall which is adjacent to the bottom end of the rear wall by a living hinge. The living hinge allows the retaining wall to hinge relative to the rear wall so as to cover a portion of the storage cavity.