88.3 used to be OK. i had some different brand one, and had minimal satisfaction with the fm transmitting.
in the end i just bought the alpine unit that plays it through my head unit(hooks up directly) because i think it is much more worth it and it gives me no problems, i actually love it
sorry if i didnt help you find stations, but if you have a compatible head unit, id say its a much better idea to directly connect
-Snipey
