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TXSpeedDemon · 04-29-2010, 04:08 PM

Hey guys,

I finished installing my speakers and sub last weekend and am getting some pretty bad alternator whine now. Could use some advice on getting rid of it.

Few questions:

If I disconnect my rca cables from the amp and still hear the whine then the problem is most likely my amp grounding, correct?

I'm assuming I would still hear the whine if this was the culprit cause the amp would still send that sound to the speakers even if the amp is not getting any signals from the headunit. I think this is the problem cause I tried reversing a power distribution block to run all my ground wires (3) into one big wire and into one grounding spot. The line is now pretty long too, at least 18-24 inches.

If I disconnect my rca cables and do not hear the whine then the problem is most likely the power cord being placed too close to the rca wires, correct?

Power line is currently run down right side of passenger footwell behind seat and over to center column where it passes into the trunk. RCA cables are run down center column entire length. So while they don't run next to each other, they do cross over each other for about 1 inch.

Could the problem be the power wire running down the passenger footwell, and the passenger side speaker wires running down the kick panel (about 4-6 inches apart). If so, would I still hear the whine in the driver's side speakers?

Any other suggestions on what could cause it?

Thanks for the help/advice.

04-29-2010, 04:08 PM	#1 (permalink)
TXSpeedDemon Enthusiast Member Join Date: Jul 2009 Location: Texas Posts: 330 Drives: 370Z, MSP, R8, 335 Rep Power: 3371	Getting rid of Alternator Whine Hey guys, I finished installing my speakers and sub last weekend and am getting some pretty bad alternator whine now. Could use some advice on getting rid of it. Few questions: If I disconnect my rca cables from the amp and still hear the whine then the problem is most likely my amp grounding, correct? I'm assuming I would still hear the whine if this was the culprit cause the amp would still send that sound to the speakers even if the amp is not getting any signals from the headunit. I think this is the problem cause I tried reversing a power distribution block to run all my ground wires (3) into one big wire and into one grounding spot. The line is now pretty long too, at least 18-24 inches. If I disconnect my rca cables and do not hear the whine then the problem is most likely the power cord being placed too close to the rca wires, correct? Power line is currently run down right side of passenger footwell behind seat and over to center column where it passes into the trunk. RCA cables are run down center column entire length. So while they don't run next to each other, they do cross over each other for about 1 inch. Could the problem be the power wire running down the passenger footwell, and the passenger side speaker wires running down the kick panel (about 4-6 inches apart). If so, would I still hear the whine in the driver's side speakers? Any other suggestions on what could cause it? Thanks for the help/advice.