A focus on Internet-connected automobiles is likely to start putting even more pressure on terrestrial radio broadcasters, as a number of carmakers and stereo developers are adding Internet radio services to their products.

At CES, the popular customized Internet radio service Pandora has taken the lead through deals with Ford and Pioneer Electronics. Ford CEO Alan Mulally during a keynote previewed several new features to its Sync in-car communications and navigation system. Called MyFord Touch, the upgraded Sync system allows users to download and access iPhone - like apps that they can operate through voice commands. The first available services are Pandora, Twitter, and a news service called Stitcher. The program includes a set of APIs to let developers create apps for the platform, designed to let them easily modify their existing iPhone and other smartphone apps.

The cool thing about this is that it skips the step of having to connect the iPhone to the car stereo, as well as allows for the creation of vehicle-specific apps directly rather than via a phone interface. It's probably a bit safer too. The MyFord Touch system will be available in a handful of 2010 models, as yet unnamed.

Meanwhile, Pandora teamed with Pioneer Electronics to make a device that, when connected to an iPhone with Pandora installed, will automatically recognize the Pandora settings and playlist options and make them accessible via the unit's display. That would allow users to stream Pandora though their car stereo system using the in-dash unit-rather than the phone-to control.