I have a Samsung Galaxy S and in my truck I have a "Kenwood KDC-352U" stereo. I've been trying to connect my cell to my stereo but whenever I plug it in, it says "reading" for a while but then tells me I have no music - connecting it only charges the battery.

Does anyone know why it won't work? I have music saved to my phone so am I just saving it in the wrong place or something? I'd really appreciate it... Can provide more information if needed.