Wow that's a cool tool! Once I get it set up that will be very useful since I dont have an oscilloscope and all.
I used the diagram from this video to wire to mic. I just put the analog output into the input pin on the MSGEQ7. It's supposed to be a preamp but I'm thinking of grabbing a LM386 and trying that instead.
and here's what I did with the chipp: http://www.instructables.com/id/Extreme-Nightlight-Color-Organ/step4/Wiring-Up-the-MSGEQ7-Chip/
thank you!