iPhone Radio app Development

[fidodido6600]

Hey guys!!
I am planning on making an iPhone app for my live streaming radio station...
I have installed 3-4 radio apps on my iPad, then SSHed them to my PC and I try to figure out what I should change and customize....

I have a question for you guys:

In wich file(s) I should find the URLs that get linked with the application??
I guess I should look for something like this:
......http://www.myradiostation.org/stream.pls......... or not?


Any help appreciated!!!!
Thanks