Anyone know how to drill through the firewall?

[RookieLibertyist]

i have a subwoofer in my kj and as of now i just have the power wire thats connected to the battery running under the car and back up into the trunk. its protected for the most part (all is covered except like 3 feet of it) but with winter and what not coming i wanna drill through the firewall and have it done it right. so if anyone has a diagram, pictures, and instructions for me it would help soooooo much.

ill post a picture of what it looks like at the present.

and for those that will why i didnt do it right the first time i was in a rush and my cousin and i couldnt find a way to get to the firewall in a place where we wouldnt hit anything.

 

[ridenby]

Use a drill,with a step bit.

 

[hyde]

Don't ever drill through your firewall, there are more than enough openings for you to utilize. There is a plastic on both driver and passenger sides that you can remove or drill through. It is more than enough to run a power wire through.

 

[hyde]

http://en.wikibooks.org/wiki/Jeep_Liberty/Electrical/Firewall_Penetration

 

[RookieLibertyist]

http://en.wikibooks.org/wiki/Jeep_Liberty/Electrical/Firewall_Penetration

ok ill try this. thanks. glad for the quick response!

 

[Ry' N Jen]

Use a drill,with a step bit.

X2.
Just make sure you install a grommet first and then run the wiring through it first so the wiring doesn't get chaffed.
Daystar makes a really versatile unit.
http://www.daystarweb.com/productlisting.php?make=all&prodcat=Firewall+Boot