I recently bought a 2007 328i and the car only has one Aux installed in the armrest compartment. Although I have been thinking of installing the aux/usb socket but was wasn't sure about a few things. First I wanted to know if the usb socket is will play music off a thumb drive or iphone (standalone with out the need of aux). And where can I buy the usb wires for the back of the socket or does my already come equipped with the wiring harness for usb?
thanks,
- mike