Cars and trucks can now get their fair share of iPhone/iPod love as well now that integration has now hit a majority level of 58% of existing vehicles on the market, a very significant number in many ways.

Proprietary dock port notwithstanding, Apple’s dominance of the music player/smartphone market has no doubt driven the adaption by carmakers. USB integration has hit 33%, with an even higher rate of increase (nearly double that of 3 years ago).

Says One user: “When my significant other bought her new Scion XD earlier in the year, one of the things she was really excited about was the iPod integration that came standard. The unit is pretty slick: the iPod can be controlled from the steering wheel, the information about the currently-playing song is available on the head unit, and the iPod’s playlists can be moved around using the stereo’s existing controls.”

More and more companies plan on integrating iPhone/iPod controls into steering wheels or radios in the near future (this is assuming they can stay in business long enough to do so, in some cases).