@ kojacker: thanks, I will check it soon.

@ handaxe: sadly no, but will soon do it. Someplayer is started traditionally like a detached process, InternetRadioPlayer instead after I have added the dbus service file is starting when any dbus call to it is done.
The start button right now is only a "play" dbus call, which works only when multimedia is running in background, so after a system boot it won't work. I will "fix" it starting multimedia in case it's not running, and sending "play" if it is.