Kikoeru? (Yaoi) I think is this what you mean The only hobby of college student Sakurabashi Itsuki is listening to his favorite radio DJ, Yunokuchi Arata (AKA Juno). They cross paths at the bookstore one day and Itsuki boldly asks Juno to get coffee with him.
Looking for a yaoi where the seme was a radio show talk host and the uke was a big fan of his