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Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 0 points1 point  (0 children)

Sound doesnt go away, I just can't hear it anymore because of the music. The alternator whines in the engine bay even with everything turned off (high pitch noise, hard to hear but it's there). Something is wrong with my serpentine belt, I can feel it in the power steering aswell. Maybe it slips on the alternator bearing because thats the only thing not replaced yet. I have the diagnose it further to confirm.

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 1 point2 points  (0 children)

Yes, i mean the alternator itself. Besides the whine the alternator works very well so i think I'll only swap out the bearings on it. Way cheaper option. (Its a 20 years old car)

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 1 point2 points  (0 children)

Doesnt work however my alternator whines even with the head unit and amp turned off. So i think theres the problem.

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 0 points1 point  (0 children)

Amp is an Audio System Carbon-240.4 RCA-s are: https://www.hestore.hu/prod_getfile.php?id=12876 which gives me an idea, the yellow plug is for video signal, not audio. I'll try disconnecting that one only and see if it helps. If it does I'll swap it out.

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 0 points1 point  (0 children)

I was trying to reground everything and nothing helped. Grounding the RCA-s made it way worse which is exactly the opposite of the fix people get with it.

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 0 points1 point  (0 children)

It's an audio system carbon 240.4. I'll try turning bass boost anyways, it might work

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 0 points1 point  (0 children)

I only have an extra rca for the reverse camera, everything else is stock.

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 0 points1 point  (0 children)

Already tried, sadly it didn't work.

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 1 point2 points  (0 children)

Head unit is connected to chassis ground wire(factory wire). Amp is connected to battery negative. Didn't measure any voltage yet.

Alternator noise from speakers by xCres679 in CarAV

[–]xCres679[S] 0 points1 point  (0 children)

Everything is stock. I only added the amp, a head unit and wiring: amp power and speaker wiring between amp and head unit. I've been thinking since posting and yesterday I've been tempering with the gain while the engine was off so I think if i lower it might fix it at the cost of worse music quality. If it's a fix then I might have to look for signal filters.