Mystery wire help - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 04-03-2013, 08:56 PM Thread Starter Fanatic
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Mystery wire help


I just bought a 2007 F350 crew cab long box. It came out of the oil services industry. I ran across some wires that were cut and cannot identify what they are for and whether they are factory or not. Can anyone help? Here are some pics:

This is underneath the door sill on the drivers' rear. There are two distinct sets of wires; one in the loom and the other thick insulated one.

Here is a close up of the two wires:

I then found a third wire shown in the picture below (far right wire). It looks like a coaxial cable to me, but not sure.

The thick insulated cable ran under the driver's side rear and front sill and ended up under the front floor mat. It is a cluster of about 20 individual wires. In the picture below, it shows two sets. I think the thinner one is for the OBD, but am not sure. The OBD plug is another story for later.

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post #2 of 4 Old 04-03-2013, 09:00 PM
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the bigger one looks like a lightbar control wire you know like a beacon light bar, or it could be trailer wire but not sure why it would be running through there??????

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post #3 of 4 Old 04-05-2013, 12:39 PM Fanatic
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Definitley doesn't look factory. If I had to take a guess it was for a CB radio. The coaxial cable could have been running to the bed for the antenna mount. I have never seen the wiring on a CB before but I have seen VHF's and they use a coaxial cable for the antenna. A lot of people mount their CB radios in front of the center console which would explain why it's coming out at the OBD port. Also with the truck coming out of the oil field industires, i have no doubt that they would have had a CB radio. In that truck. Someone did a number on that OBD port though.

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post #4 of 4 Old 04-05-2013, 02:29 PM
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Not factory wires.

I'm thinking along the lines of a lightbar cable and a 2-way radio wire...

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