Hello, I'm wanting to install a pioneer 12inch subwoofer and 840watt precision power amp to my factory head unit. I have the wires and the high low converter. My question is can anyone tell or show me pictures of where the hole in the firewall is located so I can run the power cable through it? Also, how would i connect the high/low converter?

 

This information is literally EVERYWHERE on this site. Do a quick search and you'll find everything you need to know

I would use Google and search b/c A-zine's search function isn't that great

 

https://acurazine.com/forums/3g-tl-audio-bluetooth-electronics-navigation-94/diy-aftermarket-amp-install-speaker-install-audiocontrol-matrix-install-w-pics-580314/