You do this by removing the speaker grille, door panel, or whatever other components you need to pull in order to access the speaker.
Ị na-eme nke a site na iwepụ ọkà okwu grille, ọnụ ụzọ ụzọ, ma ọ bụ ihe ọ bụla ọzọ ị chọrọ iji dọpụta iji nwee ike ịnweta ọkà okwu.