Speaker wire harness
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5th Wheeling
Joined: Feb 2023
Posts: 45
Likes: 4
Speaker wire harness
I have a 75 f250 highboy that needs a complete new speaker wiring harness. All the ones I see for sale only have to connectors for the door speakers… I need three for the one in the top of the dash. Does anyone have any ideas on where I can get one with three or what to do?
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,150
Likes: 5,785
From: S/W Missouri, Polk county
"The OEM radio was powered by a GREEN 2-terminal pigtail. YELLOW with a BLACK stripe is switched power, BLUE with RED stripe is dash illumination. Do not mistake the BLUE with RED stripe wire for ground. The OEM radio grounded through its mounting chassis. The speakers were connected over a separate pigtail.
Looked behind the glove box and find a connection the goes off the green and yellow. GREEN with YELLOW stripe wiring is hot-at-all-times power for the courtesy lamp circuit. Use that. There is a black 3-connector pigtail behind the glove box (which also goes on to power the cigarette lighter).
It's not the stock radio wire because the stock radio didn't need hot-at-all-times power (EXCEPT the factory digital AM radio for clock memory).
solid black—power
blue with red stripe--dial light
lack with gray dashes—ground
orange with green dashes--right speaker
white with green dashes--left speaker
Assuming an AM/FM stereo and stock wiring harness'.
Purple is ground, right speaker is white and left speaker is orange.
For OEM radio help, the guy to use is in Scottsbluff Nebraska. His name is Gene Cochran, and he works out of his house. He does some tremendous work. While he had the radio apart, he updated some of the internals and cleaned the heck out of everything. My total bill was $25! His number is 308 632-2520 (I checked with him at the time I collected my stereo, and he was OK with giving his number out).
He also lined me out on the manner in which the old radios were wired (mine at least). The speakers are in series meaning positive from radio to positive on speaker #1, negative from that speaker goes to positive on speaker #2. Negative from Speaker #2 goes to Negative on stereo. Now the stock stereo rocks as loud as the little 5 1/2 speakers can handle!"
Desk Jockey
Joined: Sep 2021
Posts: 1,058
Likes: 421
From: Raleigh, NC
My 77 has a FM with only the center speaker pigtail connector. Mono. I have other radios that are stereo (78+ I think) that have the two speaker pigtail. FWIW.
Rich’s comment above is truth. Good stuff in there.
Rich’s comment above is truth. Good stuff in there.
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Only the AM radio used only one speaker. The AM/FM stereo used the two door speakers.
1st Gear
Joined: Dec 2024
Posts: 1
Likes: 0
"The OEM radio was powered by a GREEN 2-terminal pigtail. YELLOW with a BLACK stripe is switched power, BLUE with RED stripe is dash illumination. Do not mistake the BLUE with RED stripe wire for ground. The OEM radio grounded through its mounting chassis. The speakers were connected over a separate pigtail.
Looked behind the glove box and find a connection the goes off the green and yellow. GREEN with YELLOW stripe wiring is hot-at-all-times power for the courtesy lamp circuit. Use that. There is a black 3-connector pigtail behind the glove box (which also goes on to power the cigarette lighter).
It's not the stock radio wire because the stock radio didn't need hot-at-all-times power (EXCEPT the factory digital AM radio for clock memory).
solid black—power
blue with red stripe--dial light
lack with gray dashes—ground
orange with green dashes--right speaker
white with green dashes--left speaker
Assuming an AM/FM stereo and stock wiring harness'.
Purple is ground, right speaker is white and left speaker is orange.
For OEM radio help, the guy to use is in Scottsbluff Nebraska. His name is Gene Cochran, and he works out of his house. He does some tremendous work. While he had the radio apart, he updated some of the internals and cleaned the heck out of everything. My total bill was $25! His number is 308 632-2520 (I checked with him at the time I collected my stereo, and he was OK with giving his number out).
He also lined me out on the manner in which the old radios were wired (mine at least). The speakers are in series meaning positive from radio to positive on speaker #1, negative from that speaker goes to positive on speaker #2. Negative from Speaker #2 goes to Negative on stereo. Now the stock stereo rocks as loud as the little 5 1/2 speakers can handle!"
Hello all, first post here. Sorry to dig up an old post but figured it was better than starting a new thread on a topic that's already been discussed a lot. I have a '73 bronco which I'm looking to have the am radio rebuilt/modified to am/fm and possibly an auxiliary cord (USB-C? Or even bluetooth). I keep seeing the name Gene Cochran thrown around when talking about this topic. I am hoping he's still taking in work and I'm wondering if he has an email address that I can use to reach out to him with some questions and photos of what I have. Of course I would prefer it to be PMed to me so that his email address isn't spammed.
Thank you,
Matt
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Hotshot
Joined: Feb 2004
Posts: 10,762
Likes: 2,590
From: The Shenandoah Valley
I have an oem AM/FM radio, but it's MONO, not stereo ... and it only used the dash speaker. Door speakers were only used with STEREO radios, but those had no dash speaker, just the holes as I recall.
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