For anybody whose installed grounding wires, is there some way to feed the grounding wire that goes to the battery under or sideways or something into the battery box w/o having to punch a hole in the battery cover?

 

The hole doesn't go in the battery cover. It goes in a rubber grommet leading to the battery compartment. Sorry my G is stored somewhere else now or I could give you better directions. You might find a DIY somewhere here if you try a search or someone here will likely respond soon to help you. You won't notice the hole in the rubber. If done carefully and properly it looks like a factory access for the grounding wires.

Good luck.

 

oooooh, this picture makes so much more sense now that i know that's a rubber gromet entry point:

 

Glad to help Atlantic. It's not actually a grommet, more a place to make a cut. When making the x cut use a heavy duty utility knife. Be firm but very slow, deliberate and careful cutting as once it breaks through the knife will very easily cut a huge hole you don't want.

 

okay, slight problem - i actually went and looked at the car today (2003.5 model) and there's no rubber gromet to cut - the battery box is basically one solid plastic box, with 3 or 4hoses going into the side of it - i have no gromet to cut like in the picture....WTF?

 

okay, nevermind, apparently I have to cut a hole right above where the positive battery cable enters the compartment.......AJ is scarred to cut into it now :/