If you prefer not to leave the vehicle running you can turn off all ancillary equipment(radio, a/s, etc.) and use a battery tender or charger. It will update fine with no issues.It will ask you if you want to be able to drive during update. select no and it will do the shorter version
Mine always took about 30 minutes, this time it took 40.
Do not think some where it might have finished, make sure it runs all the way thru. It may restart several times
Will let you know it is done. Do not turn car off leave car running just to be safe.
Wireless Android Support is not available for vehicles that have factory navigation.I was hoping that wireless android support will be available in this update but looks like it is not.