You could almost call it being spoiled for choices but if you're in the market for the latest in-car technology through the aftermarket, it's the right time. There are a bunch of options right now ranging from full fledged navigation head units to entry level double-DIN devices full of features.
Currently, Pioneer offers their flagship AVIC-8100NEX, AVIC-7100NEX and AVH-4100NEX with Apple CarPlay and Android Auto. Kenwood, on the other hand, offers two head units with both infotainment systems - eXcelon DDX9902S and DDX9702S.
Here's a price update on the Kenwood head units from Amazon and eBay...
Buy on Amazon: $740.00
Buy on eBay: $749.00
Buy on Amazon: $547.04
Buy on eBay: $624.99
I have also included an updated price list (updates daily) of all the popular double-DIN head units, all of which offer CarPlay and/or Android Auto. You should also check to make sure your car is capable of having an aftermarket head unit installed in it. Dash kits, wiring harnesses, steering wheel control modules, etc. may also me required.