craig_brux
Member
Registered: 5th Jan 06
User status: Offline
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right lads,
ive got a pioneer deh 30mp i think, and i have bad interference when the engine is running. all four speakers crackle quite loud (loud enough to be annoying)
it only happens when the rca leads are plugged into the headunit (nothing on the other end) and no sub or amp in the car. the noise does not increase or decrease in volume, it dissapears when the volume is on 00 but its ther on 01.
anyone know how to stop this (it aint the headunit, its the second one)
any help appreciated, thanks
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carnuts
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Registered: 28th Aug 05
Location: Hertfordshire
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because they not meant to be not connected to anything as far as i know why are they conncted anyway if you are not running anything?
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Planty02
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Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
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quote:
Originally posted by carnuts
because they not meant to be not connected to anything as far as i know why are they conncted anyway if you are not running anything?
I assume you mean the RCA leads?
Just un-plug them until you get an amp (that is assuming that you intend to get one)
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carnuts
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Registered: 28th Aug 05
Location: Hertfordshire
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yeh sorry i must of been pissed when i wrote that yeh dis connect the rca's until you get an amp 
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craig_brux
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Registered: 5th Jan 06
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i have got an amp! im just putting emphasis (sp) on the fact that it does it even without the amp connected, so ppl dont start tellin me that the amp is buggered. the amp is in my house. the amp is irrelivant (sp) cuz its interfering without it...the amp doesnt stop it interfering.
[Edited on 29-05-2006 by bass_junkies]
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Planty02
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Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
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Have you run all the cables under the sills for the amp - if so are the RCA leads on the opposite side to the power and remote?
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craig_brux
Member
Registered: 5th Jan 06
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it does it without the power cable in! and i had it running fine for a year with them under the same sill so it wouldnt be this. Ive had the rca above the seats, out the door, everywhere and it doesnt make a difference!!
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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The unit is fine without RCA leads?
Have you tried different leads?
Have you tried with RCA leads plugged in to the amp with the amp earthed?
You can earth the RCA leads to although I'm not sure what is required here, perhaps an RCA lead with built-in earth or maybe even grounding one side of the audio, not sure, its been a while.
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craig_brux
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Registered: 5th Jan 06
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yes its fine without the leads,
yes ive tried different leads,
yes ive tried them in the amp with it earthed, also changed the earth but that didnt help.
where could i get an rca lead that has an earth built in? theres nothing at halfords or anywhere like that!
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Planty02
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Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
User status: Offline
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quote:
Originally posted by bass_junkies
it does it without the power cable in! and i had it running fine for a year with them under the same sill so it wouldnt be this. Ive had the rca above the seats, out the door, everywhere and it doesnt make a difference!!
What caused it start? did you change some part of the sound system?
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craig_brux
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Registered: 5th Jan 06
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yeah the headunit. my old one got nicked. it a similar spec tho, maybe a tad cheaper but i think prices have come down so it shold be the same
edit: i ment i had the sub and amp working for a year with a diff headunit
[Edited on 01-06-2006 by bass_junkies]
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Planty02
Member
Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
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Have you checked all connections from the car to the HU - Maybe some got damaged when your old one got nicked
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craig_brux
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Registered: 5th Jan 06
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it all looks fine, they unplugged it neatly and took what they needed. If it was the car wiring then surely it would happen without the rca lead plugged in, but it doesnt
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craig_brux
Member
Registered: 5th Jan 06
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anyone know whats up?
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trixta
Member
Registered: 1st Jun 06
Location: Milton Keynes
User status: Offline
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sounds like its the connections on your headunit. see if you can try that lead out on your mate's headunnit and see if you get the problem, or even borrow your mate's, put it in your car and see if the noise is still there! I reckon it must be the your new headunit.
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craig_brux
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Registered: 5th Jan 06
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but ive sent the headunit back and got sent a replacement and its done it on both?what leads do u men? the rca leads?cuz ive tried 3pairs! or the headunit leads?
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trixta
Member
Registered: 1st Jun 06
Location: Milton Keynes
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so its not amp, speakers, headunit, leads, what can it be???
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craig_brux
Member
Registered: 5th Jan 06
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if i knew that i wouldnt be here would i?!! ive bought a new wiring kit and refitted the lot, the sub aint getting interference anymore but the speakers are still crackling. With the sub working the crackling aint really that bad now so i can put up with it if need be
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Andy_W
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Registered: 1st Dec 05
Location: Goole, E Riding of Yorkshire
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from all the things above, surely it must be the connections on your headunit that your plugging your RCA's into?
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craig_brux
Member
Registered: 5th Jan 06
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its the second headunit and the forth set of rca leads? and does it on both preouts
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Planty02
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Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
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to me it seems that it must be a dodgy connection somewhere between the car itself and the HU
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craig_brux
Member
Registered: 5th Jan 06
User status: Offline
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if it was that then surely the rca leads shoudnt make a difference and it should do it all the time?
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20valver
Banned
Registered: 14th Sep 08
User status: Offline
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have you tried using double or triple screened rca leads also you could put a earth lead from the alternator to body shell
[Edited on 18-09-2008 by 20valver]
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