Hey guys, I haven't been able to find anything on this which makes me think I may be the only one. Last night on the way hope I plugged in the micro USB cable from my 500ma car charger while listening to Pandora through the aux cable. I get a bad buzz sound like the phone has some kind of grounding/short/wiring issue. It happens no matter what I'm trying to do through the headphone jack. Even if nothing is playing. There is this really loud buzz. Is anyone else in here not able to use the aux cable while being plugged in? I'm wondering if it's my Pioneer head unit or the USB charger. I don't get this issue when using aux with my computer speakers at home or headphones.