I planned to replace a OEM Navigation Multi Display to Samsung Galaxy Tab 2 7.0 but I have a question about OEM Navigation ECU which is in trunk. I want to know can I completely remove it , or do I have to take some over voltage or by-pass? I ask about it because after pulling out the cables from Navigation ECU the navigation screen-doesn't open? Is it possible to connect it somewhere nearby the radio to pop up the OEM navigation screen ? The screen was pop up when I connect to connectors , 1 white and 1 orange ?