how did you run your power cable from your battery to you amp in the back... . . .? did you drill a hole in your fire wall?? or what..? I have like a 4 gauge so I need a nice size hole. . . I'm having a problem figuring out how to get it through my firewall...

 

Passenger side underneath the PCM; Rubber grommet, just slice an X and slide it through. I've got 0Ga running through it with no problems.