I noticed that when I turn on my 900bt, it's starts playing the same song on the USB/SD it played when I turned it off. But the problem is, that it starts at the begining and not at the moment when the unit was shut down.
The connection is ok since all the radio stations stay in the memory and it does start playing the 30th song for exemple (doesn't start at the start of the USB/SD), but it's stupid since I have lots of 120min long sets and I always have to start listening to them from begining...