I have to admit that I am confused, as to what you are trying to accomplish at this point and specifically what is not working.
With the PI disconnected from the wired interface, you should see it’s wireless SSID and be able to connected to it with, either the iPod or iPhone or other wireless device. While connected you should be able to point your browser to http://192.168.189.1 and see the M2P interface. Is this not the case? If so, you should be able to check the status of any pluggins. With the hardwired interface disconnected you will not have internet access from the PI, so things like internet radio will not function. You should however have access to your music library assuming it is local to the PI, say on an external hard-disk, or even on the SDCARD.