In the 1960s Reverberation was available as an option for sound in cars. As I remember it was "the thing" to have for your car ( in addition to under the dash 454rpm record player). I want to add reverberation to my new car via android cell phone. I see there are apps available for Android but do they work? The couple I've seen listed have a monthly fee. Is it possible to get reverb to work on a phone and have it work through the cars'' speakers? If you ever heard reverb in a car wow it's great!
