Hello. I never succeed in adjusting this to work. It permanently displays error 403 forbidden unavailable. How I understand partner id and partner key are my username and password for login to tunein service. Here's how I set it up:
In this case, it means that RadioBOSS had successfully sent the request but for some reason TuneIn did not accept it or decided not to show the new title. Please also check in the settings that you have Notifications turned on and that TuneIn notification is also turned on.