That is why so many people turn to developer based ROMs and Kernels. It is like a tune for your phone. Unsure if you could do that for TVs though. That is always the first thing I do with my phones.
I was going some of the other threads and such and there are some nice mounting options for these as well. Just glad they look nice in our vehicles.
That Nexus 9 looks pretty decent. Worried about quality control though. I just don't know how the bigger screen would look in the vehicle. Seems like everyone is running 7 or 8 inch. Also, looks like a new Nexus 7 should be coming in 2017.