When the Sena Bluetooth Audio Pack is connected to my GoPro Hero3+ with the Audio Connector, I thought I could connect my MacBook Pro (OS X El Capitan 10.11.4) to the Audio Pack through the other port (DC Power Charging & Firmware Upgrade Port) for transferring files. No such luck. Am I supposed to disconnect the Audio Connector and use the GoPro's port every time I want to transfer files to my MacBook?