Conversion to ZAB with Android system and touch display

As I have already mentioned at other places, for my 2006 GP0 such a device has run to me or it is still on the way to me. Preparing I want to have as much as possible necessary there, in order to then be able to convert between the holidays. Here arises for me the following problem. I do not want to install an additional GPS antenna for Android, but by means of a Y branch use the existing antenna. To this my question, where is the GPS cable connected? I assume on the Navi-Calculator in the glove compartment, right? Second question, what kind of connection is it, Fakra? Can anyone say that with certainty? Then I would be able to order the appropriate branch adapter. Or do I build my own one out and look, someone knows how to remove it? Do I need something special for this? Greetings Mario