Toyota Motor Sales, U.S.A., Inc. is doubling down on live streams as a sponsorship activation platform.The auto maker this year is sponsoring first-ever live streams at two of the country’s largest music festivals: the Sasquatch! music festival in George, Washington and this week’s Firefly music festival in Dover, Del.Toyota also sponsored the Stagecoach music festival live stream, including the festival’s first live stream on Tumblr.Toyota will sponsor five music festivals thi...