Anyone else have this issue? I notice when I plug it in using the usb cable I used in my old car (which charged fine) seems to barely charge in the mz3. I guess it could be the cable and will try to find another one to try, but it's sort of strange since my iPod nano is plugged into the other port and always is fully charged. Maybe it's having something plugged into both at the same time won't charge both? The phone also gets pretty warm to the touch.