Certainly were on the old IrD remote locking, the manual for the mk2 galaxy says point remote at the rear view mirror when programming but I reckon this is just a hold over from the old IrD system. As you can see from the diagram (based on LHD sharan which is all I could find) in the thread below there is nothing at the top of the windscreen, IIRC the antenna is in the control box - couldn't confirm this though Link to thread with remote locking components