Hard for me to say 100% without seeing it for myself, but I think you should be able to hook it up through your surround sound no problem.
I know when I got Direct Tv this year that they prefer to install it using the RCA jacks (the yellow, red and white ones) as opposed to going through the coaxial cable. They can't do that if you already have a dvd player hooked up to your tv and no extra jacks though.