Just info for all on the forum. My car has been back in the garage as the tracker did not work properly. It did not track journeys all the time and did not generate an alarm if the car was driven with no tag present. The tags are black and the internal model number is TM450. Turns out that Trackstar stopped installing this model in January 2021. Now all fine. New tracker installed, the one with the blue tags. I have a suspicion that the unit with black tags (old model) does not work with the iX. Just a heads up in case you are getting the BMW S5 tracker installed. Once you have the app installed, have BMW take your car for a quick drive with no tag and make sure you get an alarm on the app.