Alternator Noise coming from deck

[onlystunna]

hey ppl i've been trying to solve a whining problem a while now. Finally i've realized that it has been coming from the deck all along. Anyone know why it cud be coming from the deck or whats wrong with the deck? Its a Kenwood

[riadb]

check de deck ground

[3stagevtec]

and upgrade the alternator case to vehicle chassis ground wire..

[markzz]

if possibly u pulled a rca while the deck was playing and touched the - on + wen inserting it you could have blown the rca grounding on the deck. try grounding the rca outer body to the deck chassis and see if it stops. jes wrap a piece of wire around one of the grounds and ground it off on the deck body.

[xeon]

also check the RCA ground

[tizic]

Also instead of usin wire to ground it..use some solder on d deck body an d rca outer part of d deck..that usually does do d trick an less cumbersome than ah wire..

[onlystunna]

ok here's wat. I grounded the RCA to the body but i realized this was causing some extra noise. So when i removed it i got rid of a small amount of noise. Another thing i did was i moved the ground for the deck to a better spot which i thought gave me the lowest amount of noise possible (metal behind the deck).

Ok so i have removed alot of the noise now but there is still sum present that is noticeable. Any other ideas of wat i can do?

[nigel1977]

Try reducing your amplifier gains.

[markzz]

you are grounding the rca to the deck chassis eh.. that is not in any way supposed to increase the noise..

[dipsomaniac]

how did u ground ya rca's?

for me i did a figure 8 around both my sets of rcas and grounded it on the deck.
i also moved my deck ground to a better location.

eliminated all the annoying whiny noise 4 me.

[onlystunna]

well thas exactly wat i doing groundin to the chassis, i have no idea why the noise increasing when it there.. well i dropped some of the gains n managed to get it a bit lower but little did i know when i turned on my headlights comin home tonite there it was back again...! this ting rel annoying alyuh wud know wat i mean.

wat i realized was that when the volume on the deck is turned down to zero i dont get any noise at all but once it goes up to 1 noise coming thru...
thanks for all the advice eh ppl i jus tryin to solve dis ting once n for all

[nigel1977]

Another dumb question...

How old is your vehicle? Inspect the alternator ground strap, and the engine to chassis ground. Is your battery in good working order, ie. can you have it load tested?

Your problem is very very similar to one we are having now.

There is a last straw fix, a 2700uF cap across the alternator. I'll google it some more, and post what I find here.

[onlystunna]

thanks alot, its a nissan almera btw, i shall get the alternator and engine grounds checkd out but the car is fairly new, in good condition.. i will make another check on all grounds once again.. Can u tell me if making the ground wire bigger for the deck or grounding it the same place as the amp will make a difference? Im about to try that in case of ground loops dont turn if its gonna do anything good.. WILL UPDATE

[southside connections]

ehh u gettin dat problem in an almera?dats kinda weird yesss,never had dat problem

have you checked your rca's to see if they've been crossed with power/ground wires?

another thing is having an open multiple grounds can also cause this