Comm error 8? I had some issues when I first started using this app with my GMC Acadia, then after a few weeks it worked itself out. Now, my car required a SW update and the app doesn't work at all! Communication error 8 - something about my car's SW doesn't pass the Android Auto security check and to make sure the car's date/time are correct and update Google Play services!? Keep trying to troubleshoot and it's been 5 days no luck...really unhappy! I used to love this app...