Siri ‘Eyes Free’ was one of the many iOS 6 features that Apple showed off at it’s annual WWDC event in 2012, and it’s only just starting to emerge on select models from Audi, BMW, Chrysler, General Motors, Honda, Jaguar, Land Rover, Mercedes-Benz, and Toyota. The feature allows its user to activate Siri via a button on their steering wheel, in order to…