My SE-Lux has a USB connector in the glovebox and appears to have a lesser model stereo to yours. It reads MP3s off a USB stick okay, but got confused by my android phone. Although the phone said "Charging" when I plugged it in, it only "Charged" when the radio was on and the charge rate was so low the phone still lost charge.
Solution - 99p low profile cigarette lighter to USB adaptor from EBay is en route from China as I write!
Solution - 99p low profile cigarette lighter to USB adaptor from EBay is en route from China as I write!