Need Help Plz

[BeeBee]

im trying to run a 4gauge hot wire for my amp i wont to come tru my firewall any idea's i got a 01 e.b. expo.

 

[GAINMOB]

check around the pedal area...i think theres a hole either not being used and plug'd with a rubber grommet or has something going through it...you can use that or make it bigger...