Does anyone know how to run a wire from my battery to the inside of my car?  Is there anywhere I can run it through the firewall?

yes there is a rubber plug on my 95 base i popped out and it runs right into
the drivers feet area.

yeah no problem. i have 2 sets of foglights hooked up and ran the wiring directly thru the firewall and mounted the switches near my steering wheel. its hard to describe where the opening is without a picture but i guess if you're looking at the engine bay go back from the battery to the firewall and its maybe about a foot down there's a black rubber grommet, yeah thats it. just cut a hole in that to make the opening bigger. if you're looking from the other side, i would say its about halfway between the clutch pedal and the steering wheel, closer to the floor though, you'll have to reach in there, long arms would help. so run you're wires thru there, trust me you'd be surprised what you can fit through that hole!! good luck

Yes, there should be a white "plug" on the fire wall, all it does is snap in place, you can pry it with a phillips screwdriver. It's directly in front of the driver on the firewall...to the right of the brake booster. It will run directly under the dash.

Check your fuses.