I just got a Samsung un46eh5000fxza and I am having problems getting the volume to come out of my old surround sound system. Especially since the cable box seems to make everything harder. The surround sound system I have is a Sony hcd-dx150. The surround sound does not have an hdmi input so I am trying to just use The rca and component cables. When I put in a DVD, the surround sound volume comes on but extremely extremely low, even on max volume which is usually ridiculously loud. Plus I lose the tv volume when I have a DVD in, I can put the tv volume on max and it doesn't change anything. What am I doing wrong? Please help!!