How do you run a power wire through the firewall Nissan Xterra?

To run a power wire through the firewall of a Nissan Xterra, first locate a suitable grommet on the firewall, often found on the driver's side. Use a wire coat hanger or a similar tool to create a path through the grommet. Carefully feed the power wire through the grommet, ensuring it doesn’t interfere with any moving parts or wiring. Once through, seal the grommet with silicone or electrical tape for protection against moisture.