I just plugged one in to the 990 and configured it to the wireless router. Turn on the computer and the Squeezebox wakes up ready to go.

I set it to randomly play my music and it's like I am listening to a great radio station that only plays music I like, all the time.

This thing is a great addition. I can't wait to figure out how to need another one. Best $300 I've spent in a long time.