[Ham-Computers] Sound card routing question

[Dave 'Doc' Corio]

    I have two sound cards in my PC, and a third (headset) that plugs into a
USB port on the machine.

    The rig and PC are already set up and working on digital modes, and uses
Windows XP Pro as the OS.

    Is there a way to route the audio that is coming into one of the sound
cards from the radio so that it goes out through the other?

Tnx es 73
Dave
KB3MOW