Sorry to hijack the thread but I am intrigued by this and have a few questions if that's ok.
I have the bog standard RMC unit in my A6 2014. I have done the instrument cluster upgrade so it's larger and in colour. I just get the arrows pointing me to which direction I should be going. There is a fibre connector at the back and I believe it's needed to get the maps from the MMI unit to display on the cluster screen.
If I was to upgrade my RMC to a MMI 3G, how would I be able to tell, before purchasing it, if it has a hard drive in it. Do they come with hard drives as standard. Also, do I need to change the control panel. I know that touchpad is an upgrade with the MMI 3G. I have been looking around on ebay etc and the ones that have the touchpad are all made for auto transmissions. I have a manual and I cannot for the life of me find one that has a touchpad with a manual shifter.