Part of my dual battery setup, this video shows how I ran wires from the engine bay into the cab of my 5th Gen 4Runner. This is for interior accessories that will be powered by my second battery when I finally get that installed.

I mainly ran this setup to power my fridge when I go on road trips, but I also wanted some always on USB ports for charging and the ability to add more accessories down the line if I wanted to. I used the Blue Sea Systems website to determine wire and fuse sizing, more info here: https://www.bluesea.com/resources/1437


Fuse Block - https://amzn.to/2HDZEPE
USB/Voltmeter Panel - https://amzn.to/3kRwmLq
Black Silicone - https://amzn.to/3jE8MRg


Inspiration for the USB panel: https://trail4runner.com/2019/07/25/c...

0:00 Intro
0:57 Explaining the Process
2:20 Trim Removal
3:52 Fishing Wires Through Firewall
6:27 Routing Wires to Rear Wheel Well
9:09 Routing Wires From Taillight Compartment
10:20 Routing Wires For Fuse Block
14:35 Reinstalling Trim
17:24 Sealing Grommet

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