Thanks for the welcome!
They monitor speed, acceleration, journey times and braking, and it can drastically reduce insurance costs for young drivers which is the reason we took it as my daughter just passed her test and it was £800 cheaper with the black box. I just can't se anyway of getting the panel back on as the inside of it is hindered by the box, I'm surely not the first person to come across this problem unless I'm being really thick haha
You can see the little box in the middle of the photo