
In 2005, Apple announced deals with major automobile companies including Mercedes-Benz Volvo, Nissan, Ferrari Audi, Honda, and Volkswagen to integrate iPod into their car stereos covering around 30% of the US car market.
Today, Apple signed additional iPod integration deals with auto majors Ford, GM and Mazda which essentially means that 70% of the cars in US will have iPod inbuilt integration before they roll out of the factory.
It may be a big threat to satellite radio companies like XM or Sirius as they will have to find more creative ways to catch the car driver's attention.

What is your opinion - Will this iPod factory attachment influence your car or truck buying decision ?
iPod Your Car | Press Release
Source: smh.com.au [Thanks, Sakshi]