Yes USB to Pi data port to sound card, easiest is to use Signalink with 6 pin mini din cable for Kenwood. Flrig on the Pi works great for radio control.
Yes. I would be using Flrig indeed....the radio cam with a usb/rs232 cable, I assume to connect to pc and use their rig control that I can download on their site....that would be the same cable to use for pi? From radio to usb Rpi? What about the data
port, nothing?