It definitely has to do with the connection, and specifically the quality of the male connection going into the phone. In my girlfriend's car, we had an aux. line installed at a car audio place. They put in a really nice, fat cable with a gold input. That worked fine until she got a charging station that the cable wouldn't reach. So I bought an extension from Best Buy that was a much lower quality, thinner line with a silver metal input. It works fine for her iPod, but if I plug it into my Eris, the tracks skip all over the place and it even sometimes opens apps that I wasn't using. It's like it becomes possessed. But if I pull off the extension and plug straight into the old, high-quality line, all those problems disappear.