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 Posted: Thu Mar 31, 2011 2:29 am |
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Joined: Feb 07, 2010
Posts: 4117
Trade Rating: +25
Location: No Man's Land
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For about the last two weeks I've had a really weird whistling noise that gets louder as I go up the revs.
Now this now has only started happening since I've weird my AMP for all my components, headunit and my active enclosure. The noise isn't there when the audio is turned off I can go through the gears and upto speed and I'll have no whistling noise but the minute I turn the audio on the whistling appears.
Now I've got my Power wire running up the passengers side of the car through the bulkhead. The earth wire is currently attached to the drivers side rear bench mounting point (closest to the wheel arch). Remote is running up the passengers side of the car with the positive and all my RCAs are running up the drivers side of the car.
I've spoken to Sam-C on facebook and he's advised to move the RCAs and remote wire up the centre channels of the car. He's also said to move the earthing point to the oem earthing point on the passengers side so I'm going to do that and use a earthing terminal.
But what I'm wondering is what everyone may think it could well be..?
Also my second problem is that from starting off I have a clonking noise coming from the rear passengers side. It stays there till about 30mph sometimes a bit more. It's always there no matter how smooth or roof the road is :S does anyone know what it coulld be. I've checked all the obvious i.e. bolts, hangers for the exhaust etc.
All help on both things will be appreciated.
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Posted: Thu Mar 31, 2011 2:32 am |
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Joined: Feb 07, 2010
Posts: 5575
Trade Rating: +33
Location: Moscow
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Audio - not a clue.
Rear - Shocks? Well shock.
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Posted: Thu Mar 31, 2011 2:41 am |
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Joined: Feb 07, 2010
Posts: 7093
Trade Rating: +11
Location: Suffolk
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Audio = Bad earth or wiggle the rca's, and does it go away?
That was my problem
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| Team Impossible Possible
The only way of finding the limits of the possible is by going beyond them into the impossible - Arthur C. Clarke
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Posted: Thu Mar 31, 2011 3:12 am |
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Joined: Feb 07, 2010
Posts: 4117
Trade Rating: +25
Location: No Man's Land
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Yeh I've tried the RCA's and it's not them so going to wait untill I get my earthing terminal and move the earthing point to the passengers side OEM earthing point and then go from their.
Shocks are less then 500 miles old as they're the ones that came with FK AK coilover set but I'll get them checked out but I don't seem to have any problems with over bumps at higher speeds.
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Posted: Thu Mar 31, 2011 3:18 am |
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Joined: Feb 07, 2010
Posts: 7093
Trade Rating: +11
Location: Suffolk
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I mean into the amp, not running along the car as RCA are too well built nowadays to get distortian from power cables 
Are they shorting out anywhere? Tight areas?
Run a new cable from the headunit straight to the sub, no hiding it away but straight across the centre and see if it cures the problem
If not try the sub in a different set up, if it cures it, it is the source unit
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| Team Impossible Possible
The only way of finding the limits of the possible is by going beyond them into the impossible - Arthur C. Clarke
Forged 1.6 Turbo
Click to see more
144Bhp @ 7PSi - 193.9Bhp @ 13psi
206 Gti Race Car
Click to see more
For all Race/Track Preparation, Feel Free to PM Me!
Whether its for a custom ratio gearbox or track-day alignment, I can help! | |
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Posted: Thu Mar 31, 2011 3:18 am |
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Joined: Jun 14, 2010
Posts: 108
Trade Rating: +1
Location: whitby
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route the power cable for the amp down 1 side of the car and the aux cables down the other side. thats suppose to help
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Posted: Thu Mar 31, 2011 3:28 am |
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Joined: Feb 07, 2010
Posts: 4117
Trade Rating: +25
Location: No Man's Land
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| Addaz wrote: |
I mean into the amp, not running along the car as RCA are too well built nowadays to get distortian from power cables
Are they shorting out anywhere? Tight areas?
Run a new cable from the headunit straight to the sub, no hiding it away but straight across the centre and see if it cures the problem
If not try the sub in a different set up, if it cures it, it is the source unit |
Not that I can see bud. The wires all all using the mounting points for all the other wiring points i.e. the slots down the sills etc and there's plenty of slack on all the wiring. I'm going to give running the remote wire a go down the centre and level power down passenger and rcas down drivers and see how that goes.
I'm going to give another headunit a go and will try the sub again once it's in it's auto acoustics stealth box and back in the car.
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Posted: Thu Mar 31, 2011 3:58 am |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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Try wiring a suppressor onto the alternator. It used to be a common fault on vehicles with older ICE. The coil in the alternator interferes with the radio wiring somehow. I'm not a techie so not sure of all the workings. They used to cost a couple of quid and stopped the noise.
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Posted: Thu Mar 31, 2011 4:21 am |
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Joined: Feb 09, 2010
Posts: 575
Trade Rating: +5
Location: Boston/Spalding Lincs
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ground loop isolator is needed, they are about a fiver off ebay. i had the same problem
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| Le Mans Blue BMW 120D coupe
Ex 1.6 sport owner | |
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Posted: Thu Mar 31, 2011 9:18 am |
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Joined: Feb 08, 2010
Posts: 924
Trade Rating: +6
Location: Redditch
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It might not be a ground loop isolator you will need.
Have you run your audio cables along with you power cables?
Are you power cables anywere near you audio cables in the boot? (or were ever your amp/s is/are?)
You are getting interference from the alternator - another thing you could do is Upgrade you earths and power leads under the bonnet, and upgrade the alternator.
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| Now sold:Pug 206 1.4 Quiksilver 3dr
New car: Grande punto 1.9m-jet sporting
Team: the SillyHilly fan club
Was: monkeyboy69s Now: C-MAN | |
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Posted: Thu Mar 31, 2011 10:38 am |
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Joined: Feb 07, 2010
Posts: 4117
Trade Rating: +25
Location: No Man's Land
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My Power wire is running along the passenger side of the car as I went through the correct place in the bulkhead. The RCAs are all down the drivers side of the car atm. But as they get to the boot where the amp is they are all by one another.
I'm just getting a whistling noise from somewhere which is gets louder as I go up the revs. Whether thats the alternator I don't know. But I'm only running an 800 watt amp and 4 gauge wiring which is reduced down via the correct distributor blocks in 8 gauge which goes into the amp.
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Posted: Thu Mar 31, 2011 10:46 am |
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Joined: Feb 08, 2010
Posts: 924
Trade Rating: +6
Location: Redditch
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I had the same problem, i would recomend that you get your power cables in your boot as far away as you car from any audio cables, this could fix your problem or reduce the feedback you are getting.
If this doesnt work i would recommend getting a suppressor.
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| Now sold:Pug 206 1.4 Quiksilver 3dr
New car: Grande punto 1.9m-jet sporting
Team: the SillyHilly fan club
Was: monkeyboy69s Now: C-MAN | |
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