Very clean install. I'm doing the exact same thing in my car, so I can appreciate the work involved. Do you mind answering some questions I have?
-How are you handling heat? Androids shutdown when the internal lipo temp gets too high, which is quite easy to do with the car parked in the sun....
-How are you turning it on? Does the nexus 7 automatically turn on when power is applied?
-Got some cute tasker scripts you want to share?
-Are you using car mode or some sort of alternative app?
-Any cool android in car apps you particularly like?
-Did the anti-glare screen help significantly?
-Plans for any cool peripherals? You can let your imagination go crazy with OTG and ioio.