Seems to me that your system didn't install it properly, bluetooth.apk is a program/application and must be installed thru apk manager app in your unit. If you don't see it in apk manager installed then it's not installed. Also, before proceeding to install of bluetooth.apk, I suggest that you go to factory settings and first change bluetooth version value to min 4 and then install new app. Sometimes system of unit can not allow prevoius versions of bluetooth to be installed onto new one, this option controls that. If new one is not working fine with this you can actually set the system to allow installment of old apks that worked in past. Also you must grant all permissions in Google account section of car settings in order to grant install of third party apps.