Opening Bose Acoustamass Cinemate Subwoofer Module . Installing stereo in my scooter. Part II

I am putting a sound system in my 150cc scooter and need to extract the subwoofer speaker(s) from a Bose Acoustamass at any cost lol if you're here for the Bose part only, you can start with this one. For those of you here for the scooter install, start at Part I