The hole is an easy fix. I just bought a blank to fill it. You already have a blank in your car just below the 3 switches (VDC, Trunk Release & Gauge Dimmer) turned sideways. It is the same part.

G35C - 6MT, DG/G, Aero, BSM, Flaps, Stillen Intake, Z tube, Crawford v5, 6 Wire Grounding Kit, Clear Corners, 2nd Battery (Brake) Cover, Sirius, Momo F16 Evo Shifter, 30% 3M Tint & more to go