i have a 2012 Toyota Yaris , it had a factory radio which did not have bluetooth. I got a Radio with a screen from a 2015 model toyota yaris and fitted it onto my car however the bluetooth does not work. if you click bluetooth it just says loading and does not go to the next menu. if you click the phone option on the radio it says no microphone connected, i’m not sure if a microphone would cause the bluetooth to not work. please help.