Using Kenwood tk-8180 with digirig for Vara FM Wide

I have a few Kenwood tk-8180s I would love to get working with digirig. I tried many different cable configurations without success.

The research which I did led me to believe that pins 5/19 would be the correct combination, but I get nothing there.

Using pins 6/17 which I believe is filtered audio I was able to get extremely faint (unusable) audio.

Any suggestions would be greatly appreciated. I really like the kenwood tk-8180 radios and have several of them. I would love to get them working with vara fm wide.

Did you ever get this to work? I have a TK-7180 that I could like to try.