As I understand, this device allows the newish iPods that recharge from USB to work with older accessories when Firewire was used to recharge the battery. I'm guessing that this is done by just rewiring within this device.
I have an adapter has a Firewire connector to charge the battery through the dock connector as well as a 3.5 mm jack that outputs the iPod's line-out audio from the dock connector. Using this device, is the line-out audio fed straight through the device from the male to the female connector, or is audio disconnected? In other words, does line-out audio still work, or does this device address only the power pin swap and nothing else?