Pandora is now available in 100 different car models, the digital radio company announced Tuesday in a statement.
The company has partnerships with 23 automotive brands and eight aftermarket manufacturers. It estimates that one-third of new cars sold this year will have the streaming music service pre-installed.
Pandora provides more than a billion listening hours to 70.8 million listeners per month, the company said.
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In January, Pandora announced a partnership with Chrysler. At the time, only 17 percent of phone owners used their devices to stream digital radio in their cars. The assumption within the industry is that usage will increase dramatically.