Things You'll Need
Instructions
Plug the red and white ends RCA cable into the corresponding ports on the mini jack to RCA adapter cable.
Plug the mini jack to RCA adapter into the "Line In" jack on the computer's sound card or the on-board audio controller.
Plug the RCA audio cable to the "Audio Out" port on the Xbox. Press the "Power" button on the Xbox to turn it on.
Click the "Start" button and select the option for "Control Panel." Select the option for "Hardware and Sound."
Click the option for "Adjust system volume" that is under the "Sound" option. Move the slider bar up for the "Speakers" and the "Line-In."