Firewall wires?
Freshman User
Joined: Oct 2009
Posts: 36
Likes: 0
From: Southern Indiana
Super Duties have what are called "customer access wires" already installed. There are four wires, one end of each is by the master cylinder under the hood and the other under the dash. they are there to allow you to hook up your own accessories with out haveing to penetrate the firewall.
Here's a link to a post with i picture:
https://www.ford-trucks.com/forums/9...t-cut-off.html
They are also called "pass through wires" or "blunt cut wires". A search will give you a lot more reading on them.
Here's a link to a post with i picture:
https://www.ford-trucks.com/forums/9...t-cut-off.html
They are also called "pass through wires" or "blunt cut wires". A search will give you a lot more reading on them.
Thread Starter
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New User
Joined: Jun 2010
Posts: 4
Likes: 1
Thanks, that is good to know. I ended up just running everything through an existing hole as I needed to run the wires for the lights as well as the power wires, but I will use the customer access wires at some point.
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