This reply pretty much consolidates all three of your posts.
In short, great write up!
I was really bummed when my daughter, a few years ago, bought a 2013 Rav4. The infotainment screen was SO NICE! It had album cover art, full color, it was awesome! And here I am in a premium Lexus, just one step down from the their best (LX) model, my GX, and I have a screen that looks like Windows 3.1!
I just couldn't understand how Toyota/Lexus would let that happen!
Back to your write up. Does one have to have a Premium model with the infotainment system to use the Hamilton or will it work on any trim level?