Jensen/Naviextras not Apple compatible
Just an FYI - got my new Forester last Monday and tried to update the GPS in the Jensen multimedia unit in the dash.
Naviextras requires that you download a "toolbox" to obtain updates. However, their "toolbox" will not work with Apple computers, it will only work with Windows. I sent Naviextras an email questioning Apple upgrades and I was advised that they were thinking about it but right now, not so much. Their solution was for me to borrow someone else's computer that runs Windows and do the download and update on a borrowed computer.
Naviextras is definitely NOT Garmin!