is it possible to install Android Auto on the stock radio or is it not necessary in order to use Android Auto off the phone?? Also, is it possible to upgrade the existing factory software that comes pre-installed from factory?? Last question: I live on a dirt road at the top of a mountain with 1,000 ft. elevation and would like to know if anyone in a similar situation has upgraded the suspension for such conditions and with what?? I'm an ex-Toyota 2013 RAV4 owner. Thanks!!