[Nosey]

Just wondering, I'm using pandora, works great so I can listen to the radio on my 30-45 minute drive to and from work and not change the station 3 times or lose it completely, but, I've hooked up an external stereo speaker but it's only playing out of one side, not both, I know the speaker works in stereo, I use it on my laptop, I thought the headphone output was in stereo? is anyone else experiencing this?