A:AnswerThis question doesn't make any sense, but if you are asking if you can use a digital optical audio cable, then the answer is YES. You can see from the supplied images in the listing that it has the digital optical audio port. I have attached an image.
A:AnswerI don't think you can. That;s probably why they warn you that anybody can see what you are doing. I just stick with my regular, secured, router
A:AnswerNot sure I understand, but the subwoofer that comes with the system connects wirelessly to the sound bar. Mine worked together directly from the box but I think there are instructions on how to reconnect the subwoofer wirelessly back to the sound bar unit. There are no outputs or connectors on the subwoofer. Also, I do not know if the subwoofer would work with any other units.
A:AnswerI have had this same issue. The only way I was able to get it to connect to my Wi-Fi was by using the Device Utility App in the Google Play Store. Even then, it's been problematic when trying to use it through Google Home.