97 F250 car stereo ground wire location - Ford Powerstroke Diesel Forum
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Old 05-09-2013, 03:36 PM
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97 F250 car stereo ground wire location

Howdy,

Got some annoying static with my stereo (its a aftermarket Pioneer head unit). Static is at medium to high levels.

So, I figured I chase down the grounding.

Does anyone know where the car stereo ground wire in the F250 terminates. Trying to chase this wire.

Thanks.
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Old 05-09-2013, 03:40 PM
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Does it have static or it is a whine that fluctuates with the RPM of the truck?

If it is static, I would say the issue is the speakers (especially if they are the stock speakers)

If it is a whine sound that changes with RPM, you have a ground issue. If that is the case, I would pick up the ground from the head unit and ground it to one of the metal supports beams in the dash or to the body of the truck somewhere.
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Old 05-09-2013, 03:46 PM
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when in doubt just add another ground like mentioned it will supersede the weak one if that was indeed the issue
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Old 05-09-2013, 03:53 PM
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Thanks for the quick replies.

Installed new speakers. So its not the speakers. Not rpm relative, Even does it with the motor off. Just redid all wires with proper bullet connectors.

At a loss here.
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Old 05-24-2013, 05:32 AM
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Try this

Try disconnecting the antenna lead. I have found over the years that the noise could be coming through the antenna. If that does not work, you might have a defective deck, pioneer for a few years had some quality control problems and you might have one that got out before being checked.
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