...HDMI adaptor? I have a Hitachi Stereo/CD/etc. system and have connected it to my HD TV using the red and white connectors and it works when I watch TV and use a camcorder through AV connections, but when I try my Xbox 360 through a HDMI cable it stops working. Then I tried an adaptor I got with my HDMI cable so it goes directly from the Xbox to the stero system, now it works but the cables go nowhere near the TV so obviously I can't put the TV audio signal through the stereo and even when watching TV the sounds carry on.