Hey guys, 
I'm planning to install a custom sound system and need advice on wiring
(8 gauge wire, from my amp to my battery) , I'm just wondering about my firewall...are there pre-drilled holes that go directly into the cab? .. (ex: under the steering column ? )
2001 Ford Ranger XLT Super-Cab
Thanks

I'm planning to install a custom sound system and need advice on wiring

2001 Ford Ranger XLT Super-Cab

Thanks