[King Asoka]

the hole i ran mine through didnt have a gromet, i was quite surprised about it. anyway, its located on the firewall behind the fusebox in the engine bay. its about 8-10 inches below the top of the fuse box on the firewall. If you remove the panel under the drivers side of the dash, the hole is to the left of the steering colum and about 6-8 inches from the top of the carpet. If you get a buddy to shine a light from the engine bay down behind the fuse box, you should be able to see it from inside the car. there were no other wires running through it so you could easily fit any gauge wire. 0 gauge might be pretty tight.

I dont know if you need the info, i just thought id put it up if anyone is interested. It will save you a bit of wire. that is if this hole exisits in your car, or others for that matter.