For the hidden USB port near the parking brake (usually used for phone charging) has anyone noticed an issue with the power provided? I've found that if I am using Google Maps or playing music and keep the screen on that it drains power too quickly even though it is indeed charging (I see the charging icon present on the iPhone and if I turn the screen off it does charge slowly). I don't think I noticed that before with my older iPhone and have the 5S now.
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