If you look directly across the engine bay laterally, the highest part of the cone should be about the same height as the crease in the black engine cover, just ahead of the Nissan badge. I would not expect the cone itself to be much higher than that. The flexible rubber bit on the heat shield will, of course, be higher.
The underside of the cone is likely to be very near to two sections of the wiring loom but both are protected by robust sheathing so that should not be an issue.