Try what I have done on my 350z, I am sure it cant be that different. Plug into the cigarette charger behind the drivers seat (if the 370z has one), run the cable under your door kick surrounds, push in alongside your driver side dashboard (right in the corner, push it in with a blunt instrument), push behind the far upright window column (window side) (there's loads or room) and then run it along the top of your windscreen behind the roof lining (loads of room) and then drop it in behind the cam. SImples.. You cant see any of the wiring..