You mean that in LMS, under „Radio“, I should paste the URL of my radio station, <http://tunein.com/radio/KPFA-941-s34653/> ?
Yes, I have tried that several times and the station appears in the right-side panel but no sound and the timeline (is that what it is called?) bar increments for a few seconds and then resets to 0:00.
Please keep in mind that when I first install Max2Play a few weeks ago, I chose the „Basic“ set-up and the MPD Player. With that player, all radio stations played just fine (using YMPD).