Here's an easy question that I can't quite figure out.

I have a Beyerdynamic dynamic mic with the usual XLR connector. I want to make up a lead to connect it to the XLR input of an M-Audio USB preamp. I have the XLRs - problem is, I only have unbalanced instrument cable. As I'm only going to be using it for some karaoke fun at home with the kids, I don't need balanced. How do I wire up the cable to the XLRs?

Thanks in advance.

Stephen