For iPhone (it also works with android), you simply download an app, change your wifi to "TripleMateNano…", then inside the app, you can see your SSD and have access to the content.
The idea here, as far as I can visualize, is to attach the SSD securely (may be inside the glovebox or screw it in) somewhere in the car, run the usb cable to the data port and use the SSD normally. When we need to access the content, either at home or on the road, you unplug the usb cable from the port and plug it into this TripMate, and access it from your iPhone wirelessly. Of course, if your tripmate is using your home network, you can access it from the network.
The nice thing about it, a thief cannot steal the SSD from the car because it is secured.