Firewall holes -
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Unread 03-18-2014, 01:37 PM   #1
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Join Date: Mar 2013
Posts: 287
Firewall holes

Anyone have experience with running a power an ground cable through the firewall and into the cab? I think I'll be running some 8 gauge wires through this weekend but I want to know if there's stuff I should be cautious about

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Unread 03-18-2014, 03:42 PM   #2
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1992 XJ Cherokee 
Join Date: Feb 2007
Location: Ewing, New Jersey
Posts: 943
I have a power wire for my sub amp running through the firewall, it's easy. Just look for an open spot, find a grommet that fits the wire and your hole, slip the grommet on your wire and then run it through the hole.

- Justin
1992 Cherokee Laredo - all stock, DD. Needs some minor rust repair, then on to the mods!

1996 Cherokee Classic - 3.5" lift / 31.0x10.5 Mastercraft Courser CTs / Warn XD9000i - Stripped for parts / junked :(

2004 Grand Cherokee Laredo - 4.7, bone stock - Wife's DD

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Unread 03-20-2014, 02:16 PM   #3
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2001 XJ Cherokee 
Join Date: Jan 2009
Location: Dallas, Texas
Posts: 670
I ran my power wire through an existing grommet somewhere near the blower motor, I forget exactly where, but I just slit the grommet, ran a hangar through til I could grab it in the cab, and then used that to pull through the 4ga. It's held up well for me so far.
"I just need to do a couple tweaks on my jeep, I'll be done in a couple hours." - gone 3 days
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