I have a dilemma.I have a 2007 Aspen pearl black with lowered suspension and very unique custom interior. I am asking for your help because after seeing your build I don't think that there is any better person to advise me.

I want to change my car entertainment system which is currently factory. here are a few ideas that i was looking at before i saw yours..

with and aftermarket 7" car stereo. ie( AppRadio2, Sony ,Alpine)the problem with this one is that if i use just the android hardware without the head unit then if my phone crashes i am left with no nav,radio,or anything. And if i use the aftermarket car stereo then i can't maximize my screen size

Then I thought why not go big and get a 9" screen and a aftermarket radio and try to overlay or adapt the bigger screen to the head unit , but your post seems to strongly frown on such an idea. Please explain ?

This one i also got from your post. Alpine Hub systems, but my issues that the skins did not look nice at all.I look aslo a lot more than my 4th option which would be a carpc.I just feel like i don't know enough about what i need to make it work.
Even if your can't help me please just drop me a line letting me know this so that i can turn else where for help