Hello, I have recently made the switch over from IPhone to Android and I have a Ken-wood deck in my car and I connected my IPhone through USB to this, but now being on android, the USB does not work and I am restricted to only using AUX. My problem is that when I plug in my Android through the AUX input, it is very very quiet and noisy! Using my IPhone through Aux yielded a quieter sound than on the IPhones USB, but the IPhone USB is significantly louder than the Android's. I was thinking about buying a headphone amplifier to boost the signal into the deck but I was unsure if that would solve the issue. Thanks! ( Fiio E6 )(Samsung S7)