How to connect switch and pc audio into one headset

Solution
Yes, just patch the switch audio out to the "line in" on your sound card with that cable, and make the appropriate adjustments to your recording devices (right-click on your speaker and select "recording devices", may have to right-click on the white space and enable "show disabled devices" and "show disconnected devices" if the line-in does not show up) then adjust levels with the mixer as needed.
Yes, just patch the switch audio out to the "line in" on your sound card with that cable, and make the appropriate adjustments to your recording devices (right-click on your speaker and select "recording devices", may have to right-click on the white space and enable "show disabled devices" and "show disconnected devices" if the line-in does not show up) then adjust levels with the mixer as needed.
 
Solution