Who knows home theatre systems?

thanks guys much appreciated!!

My TV will automatically put the sound to the home theatre reciever without changing any settings once this cable is hooked up right? Or will i pull the shound from the cable box?
And finally im sure its hard to say without looking at the system but any clue what input id set the reciever too once i hook the cable up?

yeah my reciever powers the sub…so I’d have to find a similar one. Im failry sure you can buy replacement type speakers