Johnny V,
Thank you very much for the fast and helpful reply. After reading through the information in the links you provided, I believe this was a case of user error on my part. I needed to select the ASIO drivers in Sonar:
1. From the
Options menu, select
Audio.
2. Click the Advanced tab.
3. For Driver Mode, select
ASIO.
The Aardvark inputs and outputs are now available in Sonar.