Logitech X-230 Computer Speakers "xbox crackle" Questions

X-230 Xbox 360/Computer Problem. I have my xbox 360 hooked up with a left/right audio to auxiliary adapter cable with a female end, and the inside of my soundcard is a female input. I have a splitter ...

...crackle but no sound coming through optical feed on spherex xbox 5.1 surround system the speakers plug/outlet is usually at the back of the computer you will have to open up the computer to check the ...