In built phone holder?

[BrandonBegg]

I’ve just bought a second hand 2009 A3 and it came with what looks like a Bluetooth phone holder.
Does anyone know what I need to buy to make this work?

 

[Crazyfool]

I might be wrong, but I thought they were hard wired to the stereo system for a specific phone.

If it was Bluetooth it wouldn’t need the gold connection points.