Help wanted to modify a bluetooth speaker to a wired connection to a hifi

Hello I have a subwoofer left over from my Samsung soundbar home cinema system which is no longer working. The subwoofer though is working fine is it possible to wire in connections to the bluetooth subwoofer to connect this to my hifi? I have attached a picture of the electronics of the subwoofer, if anybody knows if this is possible please get in touch?