How was it drilling into the firewall (where exactly) and where did you mount the switch?
also any issues drilling the hole for the mount for the lights inside the grill?

Just waiting for RedRam to chime in on my wiring "capabilities".

 

I had to use my electric drill. Not the battery one. And I there was already a hole in my firewall where something else was ran, so I slipped my wires in there.

 

here did you mount the switch? Im thinking near the parking brake release, like where the trunk monkey switch it. How was it popping off the panel on the inside?

As far as drilling I think my impact drill is up for it, itll sink a 4inch deck screw in just over a second.