This is a Bose subwoofer from my personal vehicle a Nissan Rogue Sport 2020. I had to install a full-sized spare for a long road trip and the subwoofer had to be pulled. The subwoofer is fully tested and functioning. It is in great condition. Also included is the compartment for the speaker that goes around the subwoofer and fits into the floor in the cargo area. The entire enclosure goes under the floor. Typically this takes the place of your spare if you have a full sized spare.