Best place to run wires thru firewall?

Where is the easiest/best place to run wires thru the firewall? Especially you guys that install front cameras.

 

There are grommets through the firewall on both the driver's and passenger side. See below.

 

You ultimately need to pick a spot and decide if you want to cut your grommet or not. You have a grommet on each side of the firewall. You have options: Do you want to punch a hole and run a wire thru said hole, or untape the OEM bundle running thru, run your wire thru, and re-tape? If it’s a skinny wire, I’d probably choose the untape/retape method, and route thru the passenger grommet. You’ll be fighting with less other wiring on pass thru, and once you get inside, you can easily run the wire to the back of the stereo by removing the glovebox which is deadnuts easy to do.

From a leak perspective, I don’t recommend cutting your grommets, water can travel down your wire and into the cab, though people do it all the time. Round punches one gauge smaller than the wire are much better option. I’ve also drilled firewalls before and slapped a grommet on, but again, don’t recommend unless you create a drip loop.

 

Fuck wires, go wireless cams.

 

Camera came freebie so freebie it is. (I'm frugal)

 

All of my exterior wiring is run through the grommet in the floorboard on the drivers side near the frame rail. No matter where the wires end up, that is my point of entry/exit.

 

I’ve run wires through the grommets. Minimize the size of the hole and I’d recommend taping around the wires and maybe some silicon to be safe.

 

Ran amp power wires on the driver side grommet, ran tailgate cam wire using the grommet in the floor under the driver seat and ran the wiring down the frame rail, ran the license plate backup cam for my dash cam mirror using the grommet under the passenger seat and down the frame rail.

 

Thanks guys for all the suggestions. I ran it thru the passenger side firewall grommet, easy, peasy.