FT5D and Digirig - Unable to setting Audio Input Monitor

Hi All

I figured I would start with RadioMail and work my way back on various Forums

I am trying to run RadioMail on iPhone16 with Yaesu FT5DR. I am using the Digirig cables.

Everytime I go to set the Audio Input Monitor Level - the volume level is too coarse of an adjustment (SQL at zero) and I skips past Too Loud and Goes to Too Quiet.

I have tried changing adjustment knobs but no avail.

Anyone have suggestions or have this working on FT5DR. (Next question will be about Output Diagnostics, but need to get input right first)

Thanks

Erik