GoPro 4 FPV on Phantom 2 Vision+ with simple cable ?

[Karanba]

I read on the rcgroups that it is possible to get FPV with 2 wire cable that connects to the GoPro. Has anyone done it so can tell little more ? GoPro cable plugs in se miniUSB port and then it has VIDEO and GND wires which connect on one of the cables or directly inside the Phantom. I need more infos if someone knows.

Thanks