We are about to pick up a gorgeous low-mileage 2016 EX (to supplement our workhorse 2011 EX-L with 260,000 km) and wish to add basic nav and traffic functionalities. I am aware that our preferred Android Auto install would mean a new aftermarket head unit, for which I've been quoted about $C1200 for a middle of the road Kenwood or Pioneer with parts, installation etc. Before spending that kind of money, I'd like to investigate adding Carplay to the underwhelming stock head unit, which I understand from the many threads here and elsewhere seems to be possible? The head unit currently shows no sign of having Carplay, so where can I download the required firmware update, or this only done by the dealership? Also, since we are currently Android only, I'd have to pick up a cheap used Iphone to pair with the head unit, so which models/generations of Iphones will work? Thanks in advance