Firewall hole for the wiring harness, inside

This is a shot of the interior showing the hole. Some of the insulation was removed to make the hole. The carpet is also pulled back, and the interior trim covering the heater ductwork is also removed. There is a dimple on the firewall on this truck. A 1/8" hole was drilled from inside the truck just to the left of this dimple (the dimple protruded into the passenger compartment, otherwise I would have drilled on the dimple). The hole saw was then used to cut this opening.