Aygo 2 (2016 and 2017) X-Touch or X-Nav

[Roger75]

Hello and very happy new year for all
The new Aygo 2 from 2018 are compatible with Car Play and Android Auto
By cons the Aygo 2 of 2016 and 2017 are not
I currently have on my X-NAV the firmware version 0840 (RC4)
I do not think that the X-NEV of the old models could evolve one day
So is it possible to replace it with a new one from 2018?
Is this feasible by me?
Or if we go through Toyota what is the cost?

Another solution is considering changing the X-NAV by another kind of system (Pumpkin Android 8.1 Car Audio DVD GPS 2 Din Touch Screen 6.2 Inch RAM 2GB ROM 32GB)
But are the original wiring compatible or not?
Is it complicated?
It's a shame to have a screen and can not do much with ...

Thank you in advance for your replies

Roger