Edison Research has released a new “Share of Ear” study comparing in-car listening between terrestrial radio and streaming. The results: 88% of time spent listening by adults 18+ in cars is to AM/FM, radio, both over the air and streaming. The other 12% goes to streaming audio not connected with terrestrial broadcast. And yes, there is still listening to the radio outside of the car, and listening to terrestrial radio is twice that of streaming—and 96% of all ad supported audio.