accessories

Does anyone know how the heck to get a trailer hitch installed on a 2009 G37x? I can find options for the G37 but not the G37x and I'm worried there are differences in the chasis or undercarriage. Are they the same as far as a hitch is concerned?

Has anyone found a place that sells a dash cover. As I hate looking at all the dust that accumulates in a day, I had one with my FX35 but the dealer says they don't make them for this model.