I need to run some small gauge wires (led lights) from in front of the radiator to the inside of the cab for the power and switch...any ideas on the easiest way in through the firewall?

 

I mounted lights right behind my grill as well. I ran the wire back throuh the hood, down the back of the fire wall in between the fender liner and the fire wall. Drilled a small hole about an in up from where the floorpan turns up. Just be careful when drilling the hole you don't drill through the fender liner also. Put a grommet in the whole to protect the wires then used a silicone caulk to seal off the whole. This is the second truck I have used this method on. Works well.

 

There is a large rubber grommet right above/next to the gas pedal. On the inside it will be covered with a piece of foam (you will see the imprint of a circle on it). Rip is off and a rubber grommet will be behind it. Cut a slit in the grommet and feed your wires thru it.

 

Great thanx for the input!

 

yep, that'd be the hole for the clutch cable on manual cars; best place to pull a cable through.