I'm new to the forum here nad just recently purchased a 2002 F-150 X-Cab

I want to run my own power wire, but where does it come through the firewall at? The amp is going under my front passanger seat, but can't find a pre existing hole to run it through.

Where are you guys power wires run through?

 

Got my Jl Audio 250/1 installed today. Was easy when I found the hole in the firewall. It's right next to my brake booster.