I've heard all about the audio issues people have been having with output through an AUX cable and I have yet to test that. However, I have another issues where noise/hissing is introduced when I have headphones in and the charger is plugged in. It's especially prominent when not playing audio, but still having the headphones plugged in. I believe it is something to do with the poor grounding of the 3.5mm jack, so I am currently contemplating returning this device.
I was wondering if any of you guys can reproduce this issue or did I get a bad unit?