My iPhone 6 sounds an alert when its plugged in to a power port, and showes thats it charging. It did that 3 or 4 times before it excepted being plugged in the USB port in the sale bag. I think the power out put there is inadequate. No way to check the output amperage. And it wouldn't play through the Honda audio system. In fact anything Ive plugged in there doesn't work. It starts skipping through songs every few seconds with a variety of different usb sticks.