A question about my subwoofer cable - can I use it for my coaxial connection?

[caiman]

I am planning to use the coaxial connection on my new receiver, and I am looking for the right cable. But today, I noticed that the cable I am currently using for my sub's "line" output is actually two cables, one of which is just dangling there. I bought the cable a year or so ago, so I don't know much about it. On the cable itself it reads "MONSTER STANDARD Interlink Junior - standard high performance audio interconnect cable by Monster".

I have two main questions:

1. Is this the right type of cable to use as a digital coaxial connection from my DVD player to my receiver? If so, could I simply pull the cables apart and use the extra one for my coaxial connection? The two cables are easily seperated.

2. Sandwiched between the two cables is a thin, speaker-type wire. (again, currently just dangling there) What is this wire for? Does it serve some purpose that I am unaware of?

Thanks for any help.


EDIT: They look very similar to these cables (http://www.crutchfield.com/cgi-bin/S-B15bfzSRp06/ProdView.asp?i=119I2002M&id=morephotos&a=0&s=0), only mine have that thin wire inbetween.

[X]

You "should" be using 75-ohm cable for the digital connection. The yellow video cable is usually 75-ohm, not the cable used to carry the left and right audio signals. But really, if it's a short run and whatever you have works, use it.