How to get wire/cables through firewall | Nissan Titan Forum Feb 21, 2017I need to get power wires and antenna cables from the front of the cab to the engine compartment. Other trucks I have owned (not Nissan) had an extra punch-out area on the firewall or a simple way to route cables. I have looked on the Titan and have found no easy way to get through the firewall.2017 Pro4X. Need to run wires through the Firewall. HowJan 23, 2018Running Wires Outside To The Battery | Nissan Titan ForumMay 26, 2010wires through the firewall | Nissan Titan Forum See more results How to Run Amp Wires in a Nissan Titan | It Still Runs Feed the power supply cable through the Nissan's firewall and into the passenger cabin. The opening in the firewall for electrical wiring is located on the right side of the Titan's engine compartment. Move to the inside of the truck's cabin. Step 5 Where is an existing pass through on the firewall - Nissan Apr 16, 2012I need to find a place I can bring wires from the fuse box under the hood into the cabin. Purpose is to install an LED which turns on when headlight is on. I looked at the hood release cable and it is not easy to find where it goes under the hood. Or, someone can recommend a way without wires passing through the firewall.