Next job to tacle was satnav on my mmi2g high . Mine wasnt working as the dvd unit failed. Bought one on ebay and it was simple swap . I took the bracket out in the left hand side of the boot out, 4 screws .
Unplugged power fiber and gps antena cable . Unit is held by 2 clips on each side same as a standard stereo. Popped new one in and done.
Also i got new 2017 maps from ebay (2 dvds west and east europe ). Pop in the dvd and instalation process will start automaticly . At the end it will ask you to press return button for reset
Important when buying maps for mmi2g high is to make sure you buy maps with TMC for live traffic updates
A while back i did a mmi2g high soft upgrade that is nessesary for the new maps to work. If anyone needs help with this please ask :)