350z sat nav facelift

[cascade88]

On the facelift models (with controls below the sat nav) aside from the obviously difference between the nav models and cubby only, being the centre console / cubby part and the facsia’s and also wiring for the unit itself.. I’m assuming there’s some other controllers / receivers in the car, possibly behind the seats in the rear glove box area, can anyone confirm what makes up the full system?

 

thanks 

[XSuperDan]

On my 06 GT with Sat nav, i have a DVD player slightly behind the drivers seat which holds the map data disc. Im assuming the brains for the sat nav are in that box as it seems a bit big to be a stand alone DVD drive for maps however it was 2006 tech....