hi, I've got a surround sound system and it has 1 optical port. but i've got to thing to connect to it via optical cable. is there a small device that let me expand that 1 port into 2. they won't ever be used at the same time i just don't want to be switching between the two cables all the time. if that makes any sense you help would be nice. Also if such a thing does exist where would i be able to get one?