Where to run ditch light wiring through firewall?

Pretty self explanatory, just wondering where y’all ram the wires through the firewall for your ditch lights or light bars. Pics would help, I’m an idiot when it comes to this stuff. Thanks in advance

 

If you look under the hood where the driver side fender meets the firewall, there is a good sized grommet you can poke and send wire through. Its to the right of the brake booster and conveniently enters the cab behind the parking brake pedal. I used that for my light switch and my amp cable.

 

On the driver's side of the firewall to the right/ beneath your brake booster, there will be a rubber grommet. Both the driver and passenger sides of the firewall have this grommet. You can carefully poke a hole or cut into this grommet and fish wires through. Be careful otherwise you can damage the wiring harness. I have run a few different wires through there successfully. If you're worried about water proofing, stick some liquid tape on that sucker after you're all wired up. I'll try to take a pic later if I remember.