According to the bi-annual Harris Interactive AutoTechcast study, nearly two-thirds (65%) of adult automobile owners who also have an iPod/MP3 player use the device while driving their vehicle. The study found that among all adult automobile owners, ownership of iPod/MP3 players is about one in 10 (12%). Harris reports that over half (52%) of those who use an iPod/MP3 player in their vehicle, and 14% of all adult car owners, indicate that they are “extremely or very likely” to purchase an audio interface for their next vehicle. The study found, however, that FM transmitters and cassette adapters are the least preferred. The respondents said they prefer connecting through an auxiliary jack located on the stereo head unit (39%) or through either Bluetooth (23%) or Firewire/USB connections (19%).