Hi guys, I need an adapter connect to my iphone data port while allow usb connection to charge and a 3.5mm stereo jack for audio output. I need something like this because I'm trying to solve 'cable chaos' in my car. I want to be able to connect and mount my iphone 3G by just simply connect adapter to data port, instead of audio cable to top and charging to bottom. Anyone know if there is a such thing? Thanks. ug.