Engine hum through speakers
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then it is probably the deck, try locating a new ground for it and/or ground the chassis of the deck to the same grounding spot that you are grounding the ground wire to.
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tjamz wrote:
then it is probably the deck, try locating a new ground for it and/or ground the chassis of the deck to the same grounding spot that you are grounding the ground wire to.QFT
I've found that those RCA cables with the ground wire in them is good for equalizing a ground loop.
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treimche wrote:
Just a thought here, it's possible that your amp is bad too. We actually just had a car come in at work and narrowed the problem down to a bad amplifier.Except that the noise goes away when he removes the deck and uses an alternate source to feed the amp.
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I gave him some advice..which should work if the supply to his deck really is the issue. He did find info on the net to back up my claims as well, heh. Putting a cap between the power and ground should get rid of any AC signals present. It does this by blocking any DC and allowing AC to go to ground. I guess maybe I did learn something in those stupid circuits classes?
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what happens if the faulty ground is coming from the antennae though nate? You still need to ground the chassis of the deck to the same spot as the ground of wire coming off the harness if that is the case. It could also be a poor ground internally on the deck from the circuit board to deck chassis. But yes, a cap will do as you stated if he does in fact have a dirty voltage supply coming to the deck.
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tjamz wrote:
what happens if the faulty ground is coming from the antennae though nate? You still need to ground the chassis of the deck to the same spot as the ground of wire coming off the harness if that is the case. It could also be a poor ground internally on the deck from the circuit board to deck chassis. But yes, a cap will do as you stated if he does in fact have a dirty voltage supply coming to the deck.That was the only problem I was trying to cure for him.
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hehe, I figured as much, but its in my nature to complicate things beyond necessity.
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Well, i changed the ground entirely, grounded the case, put in a capacitor between the pos and neg....hooked it up, and now the noise is only coming through the center and right speaker...
i remember with my old setup it was coming through the right speaker only.you were right, time for a new car!
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hmmm....that is odd to say the least, try swapping in someone elses deck and see if that works maybe??
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