Can't get sound to go to PDW

[ttiiggy]

I am using a radio with a cord plugged from the earphone output of the radio to the input of my sound card. 
I have tried line in to the computer and I have tried mic in.  I can't get the signal meter in PDW to move at all. 
I can hear the sounds from the radio in my headphones that are plugged into the speaker out of the sound card on the computer. 

I expect that it has something to do with my settings in the PDW interface setup. 
For sound card, I have the choice of 1. Line in/Mic in or I can choose 2. Modem #0 Line Record. 
I chose #1. 
For Configuration I can choose from several of Discriminator, Earphone, Speaker Out or Tape/Rec Out. 
I have no idea what of these to choose.  I think I have tried them all.  Still no movement on the signal meter. 

Suggestions?