I think you can check the UBS cable if it works or not. Then, maybe you restart your phone after installing Android Auto and restart head unit of your car.
I know it is old post, but i just want give some reference links that you can view to figure out your issue. Hope it can help.
https://www.ateq-tpms.com/en-us/article/diagnostic-information-mitsubishi-outlander/
http://www.myoutlanderphev.com/forum/viewtopic.php?f=10&t=822