Use the red connection. This is what it was designed for.
To be clear, it’s still not going to be Academy Award® winning sound. This microphone was designed to have a rock singer screaming into it and the connection cable really is a mismatch, but this does work.
You might recognize this cable as a mini version of the 1/4" cable that rock bands use to plug their SM58 into their amp. That might be this microphone’s day job.
Also, one black band.
The forum is accustomed to posters demanding broadcast/audiobook quality and struggling to get it. This setup will be more of a struggle than most.
People using a desktop computer to shoot sound have to worry about the desktop computer cooling fans getting into the show. Can you tell if the computer is on just by listening? If so, that’s not good news. You can’t put a blanket over the computer because it will overheat and die.
You might be able to help a little with blankets and a kitchen table sound studio.
I borrowed a SM58 microphone from a friend
Do they smoke? If they smoke around their microphone, then the sound may be a little muffled compared to a new microphone. That brown film does affect the sound.
Koz