FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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i have a problem with my speakers, but only when the cars running, all 4 are run by amps, 1 is in passanger footwell, 1 in boot, and power cables come through bulkhead from battery in passager footwell and they make a whiening noise when you rev it, can be solvied by tapping the headunit though, any ideas?
[Edited on 12-04-2009 by FAZ]
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Luke
Member
Registered: 9th Dec 05
Location: Oxford Drives:Corsa B C20LET
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Are the RCA's & power cable running down the same side of the car?
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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nope
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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power and line out down lhs (passanger) and rca's down rhs (drivers)
rcas for passanger footewell amp, run off y splitters that plug into one of those adapters from halfrauds as hu
has no pre outs and can reach amp from the hu
[Edited on 09-04-2009 by FAZ]
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GavCorsa
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Registered: 13th Feb 06
Location: Grantham, Lincs Drives: bmw 323i coupe
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double check all ur grounds - use thicker cable too if u can and rub down area (scratch primer away) where it's bolted too
no expert but could help
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sxi-kid
Member
Registered: 2nd Feb 08
Location: Greater Manchester
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i had this problem m8 i bought a ground loop iscolator or some thing like that, you plug your rca into it and plug it into your amp mine was fine after that m8
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john_c20xe
Member
Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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have a look at your altrnetor dude!! should have a little black box on it with a wire, i cant remember what its called as my minds gone blank but that dampens alternator noise, it could be missing or fooked
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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o right, so a ground loop thing? halfrauds? and check for a little black thing on my alterntator
cheers
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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black plaastic cover thing is there, presuemably the part with the writing on?
bought a ground loop thing that connects to main alternator output wire and the other end to a suitable eearth, where is this said wire and what can i use in close proximity as an earth?
engine is an c12xe
faz
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sxi-kid
Member
Registered: 2nd Feb 08
Location: Greater Manchester
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yes m8 i got the isolator from halfrauds abot £10 if that m8
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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£4, how do i wire it up?
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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bump
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Dan Lewis
Member
Registered: 31st Jan 05
Location: Leicestershire
User status: Offline
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i got something from maplins that plugged into the RCA output and it removed the sound i think its a ground loop isolator was £6 from maplins.
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
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kk, i think smething similar for #15 at frauds
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bubble
Member
Registered: 24th Jan 04
Location: Darwin, NT Australia.
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you are picking up on interferance on an rca from somewhere from the sounds of it.
or, your stereo has a speed sensor input and is interfereing
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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ok, so the rcas need this noise remover? stereo is a kenwood kdc item with mp3 player 3mm jack in front, does it have a speedo thing? wtf is this speedo thing?
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Dan Lewis
Member
Registered: 31st Jan 05
Location: Leicestershire
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Just get the Ground loop isolator it will be fine 
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Richardhhha
Member
Registered: 29th Sep 07
Location: Croydon, Greater London
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or run the rca and phono leads down the ns of the car and the power down the os of the car i found this was where i went wrong with mine, fitted a isolator and it did jack. Or if you really want to seperate them all, mate of mine when we did boot install we took out the whole interior, phono's down center of car, power down os and rca down ns. Hope that helps
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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got the isolator, now what? how do i wire it all in?
tries swapping the rca sides out, no success
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Steveocee
Member
Registered: 19th Jun 08
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If your rca's have that little strand of wire running between them, try earthing it.
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John
Member
Registered: 30th Jun 03
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The strand of wire running between them is the remote wire, don't earth it.
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john_c20xe
Member
Registered: 10th Feb 08
Location: Eastbourne, EastSussex
User status: Offline
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quote:
Originally posted by Steveocee
If your rca's have that little strand of wire running between them, try earthing it.
thats a remote wire wont do good earthing it as it needs a positive feed lol
mate you have alternator intrerference issues dont listern to people talkin crap just fit the isolater to the alternator
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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quote:
Originally posted by john_c20xe
quote:
Originally posted by Steveocee
If your rca's have that little strand of wire running between them, try earthing it.
thats a remote wire wont do good earthing it as it needs a positive feed lol
mate you have alternator intrerference issues dont listern to people talkin crap just fit the isolater to the alternator
ok, so how do i go about fitting it? which is the outgoing wire from the alternator? and where / what can i earth it to?
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john_c20xe
Member
Registered: 10th Feb 08
Location: Eastbourne, EastSussex
User status: Offline
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the alternator its self should be earthed i cant remeber what side you fit them im sure its the big positive itsself just bolts on top cant remember
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FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
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oh ok, thankyou, will look into it
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