I'm kind of not sure what I'm trying to accomplish so need a little help. I did a search on here and found the latest system version is Rel_U18.104.22.168. Mine is U22.214.171.124 so I assume I need to do an update. I downloaded the newest version to my computer, which was successful. I have tried twice to download it to a memory stick but both times it reached 70 something per cent and gave me a failure message. The instructions say a minimum 16GB stick is needed, which is what I have. I'm wondering if I need a 32 or if this is a problem with the download procedure. Also, is the update worth the effort? We don't have any problems except the Apple Car Play does not play nice with the wife's new 10S. It does some strange things on occasion.