Firewall routing
Super Moderator


Joined: Sep 2001
Posts: 10,795
Likes: 5
From: Pflugerville, TX
Vehicle: 2000 Elantra
I don't know about your car, but the RD platform has a BIG hole on the inner fenderwell near the battery that lets you run wires to the firewall inside the fender, and then it's easy to use an existing penetration or make your own, to get even a pretty good size wire through the firewall.
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Senior Member

Joined: Jul 2011
Posts: 1,021
Likes: 1
From: Illinois
Vehicle: 2010 Genesis Coupe 2L track
I ran my #3 wire through the big hole and out the door sill about halfway at the passenger seat.



For smaller wire I take the black plastic cap off the AC lines and put it though there. That comes out over the gas pedal.



For smaller wire I take the black plastic cap off the AC lines and put it though there. That comes out over the gas pedal.


