This could be an issue with your AUX cable as well - some cheaper ones (not saying yours is cheap! sorry ) or just some in general don't work as well. I have the Pop without Bose too - and I don't have this problem.I've found that I have to have the volume on my stereo up to the maximum level to hear music playing when I plug my iphone or ipod into the auxilliary jack. My devices' volume settings are all the way up. Anyone else have this issue or an easy fix?