I have two very early AI Stereo Soundcards...been inactive for a while. There is no microphone installed so I cannot do the test procedure shown in
https://github.com/Audio-Injector/stereo-and-zero. I have followed the installation procedure shown both with manual and automatic methods. There is apparently no connection to the input or the card is not being recognized. It shows up in alsamixer but record shows as "off" with no way to turn it on. Any way to get these going? What am I doing wrong?