Zoe 2013, any knowledgeable ddt4all chasps or chapesses out there. I'm in the the system ready to activate Android auto but hesitant to go further until I'm sure of the MFD file version to use. My TomTom version is 11.343, do I modify the MFD 4.3 file. There is a 4.6, 5.1 even a 1.8, my instinct is to use the MFD 5.1(latest file?) before I destroy the electronics any thoughts.