This is a growing problem with cars that have built-in media centers such as Ford Sync and Subaru Media Hub. This also happens with some bluetooth headphones. When the droid is connected using the headphone jack it works perfect. When the droid is connected using bluetooth, autoplay finds a random mp3 on your card and starts playing it automatically using the default music player. Even if it is not open. It also turns shuffle on. Beyond annoying. Please help. Thanks.