I have directly plug in the speaker into the TV card's Audio-Out (green) i can hear the audio of tv.. but i cannot adjust.. and at the same time there is no system sound i mean i cant play winamp or anything.. I also got the external audio cable with Tuner.. What do i do with it? Can anyone help me in a laymen language? Like mentioning in jack colours also.
P.S. I have no manual and cant find it online.
The tv card is: PixelView PlayTV Pro Ultra (PV-TV304P+)
Why I cannot adjust the volume? Tv Tuner! 
Linear Mode
