http://www.macnn.com/articles/10/10/28/extra.technical.imitations.apply/
iOS 4.2 allows direct iPad connections to car audio
updated 03:35 pm EDT, Thu October 28, 2010
Extra technical imitations apply
With the advent of iOS 4.2, iPad owners will finally be able to connect the device directly to a car audio system, reports say. Unlike iPhones and iPods, iPads can only currently pump audio into a first- or third-party car system using an aux-in stereo connection. The addition of USB support should allow for more advanced features, such as charging, and controlling an iPad through a head unit.
Some important limitations exist. An iPad can only be trickle-charged by an audio system, unlike an iPhone or iPod, which demands less power. The tablet also disables touchscreen controls when connected to car audio, forcing people to use a head unit's interface. iOS 4.2 should emerge out of beta sometime in November.
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wow
dumbest video review ever!