Works great, but CarPlay still may not work
2017 Subaru Forester
Crutchfield Customer Review (What's this?)
Works as expected in that it connects easily from your factory USB port to new radio USB. Keep in mind however, that you probably will NOT be able to use CarPlay. If your current car has a usb hub, this adapter is not capable of supplying enough power to allow your new head unit to run CarPlay. I've head that if your car only has one USB port, it might work, but for most Subaru folks that have two USB ports in the armrest, you'll have to achieve an alternate way to get CarPlay working. I'd suggest getting a head unit with two USB's like the Sony AX5000, and use this adapter to run the USB2 cable. On Sony, the USB2 cable is used for charging your phone and loading audio files from a USB drive. For the primary USB1, replace your current cigarette lighter socket with a dedicated USB port. I bought one on amazon for $9 and it works great!
Pros: Easy installation
Cons: May not work for CarPlay; not a defect, more of an OEM USB hub limitation