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1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck

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  #1  
Old 08-16-2014, 01:39 AM
Scoop531 Scoop531 is offline
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Dash speaker wiring??

2 wires one black one black with blue dots. My question what wire is + what wire is - and clue
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Old 08-16-2014, 08:35 AM
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I looked at the factory wiring diagram and it doesn't specify which is + or -.
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Old 08-17-2014, 09:13 PM
Scoop531 Scoop531 is offline
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Yeah did the same I even pulled out the dealership service manuals and couldn't locate it either.
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Old 08-17-2014, 11:23 PM
Scoop531 Scoop531 is offline
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From the speaker to the unit. Someone cut the harness we were gonna hook the center speaker back up to a newer head unit since it looks intack still just figured I'd ask before I guessed
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Old 08-18-2014, 11:17 AM
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it doesn't really matter, if it's hooked up backwards the signal will just be 180 degrees out of phase. I guarantee you won't be able to tell any difference.
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Old 08-18-2014, 11:24 AM
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And if it does sound weird all you have to do is flip the wires back around. either way you won't hurt anything.
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Old 08-18-2014, 12:21 PM
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I agree with miz

as a standard rule I go solid as neg and spoted or striped as pos
I also test the speakers before mounting (I understand yours is already mounted) so I would suggest when you start on the new head unit take the left or right front door speaker set it on the dash try it on both sides of the dash speaker you can hear the difference more with the low frequencies
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Old 08-18-2014, 03:41 PM
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Stock speaker and radio? Read this, ask this guy.

The guy I used is in Scottsbluff Nebraska. His name is Gene Cochran, and he works out of his house. He's a crusty old codger, but 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 51/2 speakers can handle!!!


While it's there you might see if he'll wire in an aux input jack. I had it done with mine, and it allows me to run my I-pod through it. Basically when the I-pod is connected it becomes the antenna source. Cost in parts was under $5. I set mine on a 12" extension so I could just drill a small hole in the dash by the ashtray, which I'm turning into a covert charging / storage station for my phone and I-pod. won't cost much more.
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Old 08-18-2014, 03:44 PM
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Awesome. I like that
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Old 08-18-2014, 03:44 PM
 
 
 
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