Running wire from bed to inside cab. Best route?

[AltarBoy]

Is there a pass through on the backside of the cab or the floorboard in the back to run a wire through to the inside of the cab or do I have to run under the truck to the engine bay and go through the firewall?

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[Wighty]

There’s a grommet under the carpet towards the rear under the drivers seat. In my Pro there’s already a loom of wires going through it.

 

[CuriousTaco]

I used the one on the driver's side near the rear seat for the black wire in the photo. Sounds like there's probably a couple of these grommets on the floor that could be used.

 

[john170950]

There are some under the rear seats also, see my rear seat delete thread

 

[Darkhorse24]

By default on nearly every truck on the market, there are 2 vents between the cab and bed… while it may seem strange to have these, the “science” behind it is quite obvious and useful. These vents regulate the pressure inside the cab so when you close your doors or with the factory sub, it will stop it from having it feel boxed in and still give it a solid sound. Basically it lets you have 2 pass through into the outside. You can find these behind the sound deadening above the plastic

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