Thanks for your helpful replies guys but I'm confused as I'm a long time D3 '2G man' that's still awaiting their MY2016 D4 with MMI 3G+.
I'm used to the 2G system where the MMI runs in the Control Head hidden behind the dash with phone, navigation and music ECUs dotted around the car.
The eBay reference above points me to what looks like a DVD unit with 2 SD slots and a SIM slot, which has large amounts of connectors around the back, so I assume it is a DVD unit incorporating Control Head, Phone and Navigation in one small box.
Having read elsewhere the 2G / 3G phone thread I thought quotes were £3K+ to replace the guts of the MMI on the D4.
So will replacing the DVD/SD unit with a later DVD/SD/SIM unit and removing CP, give me Audi Connect?
Julian