just picked up my new car and it worked first thing but ever since I unplugged the phone it's not working for me either. I've tried different cables and restarted the phone, uninstalled the app etc. Really would appreciate some help from UMI! Mine is a Plus E!
Please tell me how you connected your phone to radio (USB cable, Bluetooth) also make sure that your radio supports android platform, and tell me why you want connect phone to radio?