How do I set up multiple Airport Expresses to connect over ethernet for Airtunes only?

Question

I am trying to set up an Airtunes network using an Airport Extreme and three Airport Expresses connected together via ethernet (CAT5 cable). At each Airport Express there will be a speaker setup. I don't need/want internet connectivity on the network, but not sure if it is required for setup or not. I have made this work over wifi, using the Expresses to extend the network, but struggling to get this to work over ethernet.
I would be verry grateful of a step-by-step method to setting this up! I am also looking to set up 6 airport expresses to do the same thing in another location.
Thanks in advance!

Answer 1

Thanks for the info.
I assume that the AirPort Extreme is setup and working at this point.
Work with one AirPort Express at a time to get them all configured, and then you can locate them where they will be needed.
AirPort Setup will configure the Express devices to "extend a wireless network" using Ethernet, so they will be broadcasting the same wireless signal as the AirPort Extreme and provide more wireless signal coverage as well.
I have yet to meet the first person who thought that they had too much wireless coverage, but you would have the option to turn off the wireless on the Express if you wanted. Most users like having extended wireless for their devices.
Temporarily, move an Express close to the AirPort Extreme
Connect a spare Ethernet cable from one of the LAN <-> ports on the Extreme to the WAN "O" port on the Express
Power up the Express for a few minutes
Hold in the reset button on the back of the Express for 10 seconds and release. Allow a full minute for the Express to restart to a slow, blinking amber light.
Click the Airport icon at the top of the Mac's screen and wait a few seconds for AirPort Express to appear just under the listing of New AirPort Base Station
Click directly on the AirPort Express
AirPort Setup will open up automatically and take a minute to analyze the network, then announce that the Express will be configured to extend the AirPort Extreme network.
Enter a device name that you want to use....example.....Express1.....and click Next
AirPort Setup will configure everything for you. Notice that the message will say that the Express is being set up to extend using Ethernet. When you see the message of setup complete, click Done.
Now you can move the Express to the remote location where it is needed, hook it up to the Ethernet connection there, power up the Express and set up AirTunes on the device.
AirTunes is enabled by default, to other than make the speaker connection, you won't have much to do on that.
Set up other Express devices the same way, except assign a different name to each device....example....Express2, Express3, etc.....to keep things organized.