radio stations for my rado advertisement

My radio advertisement being aimed at a unisex audience in their mid to late 20's to early thirties would be played on a radio station quite unisex and formal. After having done some research i realised that i cant associate my advertisement with any bbc station as they dont have any adverts and i definately cant have my advert associated wth that of heat radio or nme as the with the latter the audience is too young and with the former the audience is too towards the female which would create a seist vibe. So i eventually came accross LBC 97.3 which is a very formal radio station which broadcasts rolling news and different features. Features such as gadgets, books and films along with travel and news shows the stations diversty and it brings up the point that the diversity would enable such a product to have an effect and reach the target audience of the radio station as the target audience is quite mature and old.