You guys are talking about different type of "connection". The way app communicates with the vehicle, is through the built in system, like on-star, or other similar.
That's not the tracking system I asked about. I asked about a small box, that has a GPS chip in it, connected to the battery, and it tracks the location, that's it. It's not connected to avis app, it's not connected to engine module, to check vehicle status, etc. Just location. The box is not made by the manufacturer, it's a 3rd party tracker, I believe provided by fleetmatics.