Well, with the new delay on radio stations and my favorite station being the very last one, what if we had a default radio station that we could set in the the options menu? You could set it to, for example, Kickin' Country, so whenever you enter your car it'll automatically play that station. There can also be an option for "Radio Off" if you don't want any radio station to play when you enter your car.
Also, is it possible to get an off button for the radio? That way we can easily turn the radio off without waiting 10 seconds until we get the "Radio Off" station?