Hi there I've just got a late 2009 S4 Avant which has MMI 3G High on it but I presume a 2009 maps / MMI software. Do you know if an Audi dealer will update the MMI and maps for me? What does this entail (i.e. will I get full 7 digit postcode nav search, etc?) and what it should cost? Are there any updates now apart from just map data?