Identify wiring & 3 prone connector, located under driver side dash

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beardogc20

beardogc20

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Can someone help identify what this connector could be used for?

I recently purchased a 1976 C20 scottsdale. The wire starts from the fuse box (15a) then continues to a online fuse and ends with a 3 prone connector. From connector a ground wire (not connected)

Thanks
 

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legopnuematic

legopnuematic

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CB radio or similar power cable.
 
Radiohead

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Yup, Uniden CB power cord. Fits quite a few of the older models.
 
bucket

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Radiohead said:
Yup, Uniden CB power cord. Fits quite a few of the older models.
Click to expand...

What was the third terminal ever used for? I've only ever seen two wires in them, power and ground of course.
 
Radiohead

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Not sure Bucket, I've only seen two wires as well. Maybe a polarity scheme?
 
Tonimus

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bucket said:
What was the third terminal ever used for? I've only ever seen two wires in them, power and ground of course.
Click to expand...
The third pin, when used, was for ignition power. Battery/Ignition/Ground in varying order, almost always with the ground pin on the single side, IIRC.
 
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