can i stream the audio from a movie from iphone4, from the 3.5mm mini jack out to aux in car stereo?

can i stream the audio from a movie from iphone4, from the 3.5mm mini jack out to aux in car stereo?

I downloaded a movie (live concert) to my iphone 4g and would like to listen to it thru my car stereo via the 3.5mm mini jack to aux port? just want to hear the audio stream, not see the video stream