When I bought my 2009 mariner, I did not get the temperature readout nor compass on it (due to what was in stock at the dealership during cash for clunkers). I was wondering, is it possible to add this on? The sync display has spots for it on the readout - I can see them when the sun hits the display just right. Does anyone know if it is possible to do this? And if so, what parts (maybe even part numbers?) do I need to get to do it?