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#1
02-25-2011, 09:41 PM
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Horrible electrical sound. Thoughts?
Check out the link to the video. Horrible Noise At around the 53 second mark you will hear an awful noise. It is much worse in real life  It is hit and miss on when it decides to happen, however generally it is when it is warmer, 30'c + (86'f +) and after I have driven the car for approximately an hour. My thoughts are it has something to do with the alternator, as it starts fairly quietly and then builds up. It is a similar noise to an older car that needs a suppressor put on its alternator. Your help would be appreciated. It is a hard one to get an auto elec to look at as it is hit and miss. Cheers. Brett 
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#3
02-26-2011, 09:23 PM
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Is the sound coming through the speakers?
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is 
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#4
02-26-2011, 09:26 PM
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Quote:
Brett
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#5
02-26-2011, 10:05 PM
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Check the amp area in the rear for any signs of water leaks... left rear panel with regular CD player radio, by the battery with NAV. I'm saying this because I've seen them do this when the amp gets wet and the connectors get corroded.
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is
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#6
02-27-2011, 05:29 PM
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Try to pull the radio module switch. Do you hear the sound?
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#7
02-27-2011, 06:49 PM
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Something is touching a cable I think. Check rear of truck left side and see.if anything is touching or wet or just weird. Maybe even under spare tire wire radio stuff is like a bump in road loosens up a wire maybe
Sent from my Nexus S using Tapatalk
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More gas mileage = more square feet to pimp x5 4.4i 2001 topaz blue x pipe rear window shades 20inch chrome 4.8is wheels angel eyes with color matched housing 
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#8
03-19-2011, 08:04 PM
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sorry for the delay guys. yeah there seems to be some corrosion on the amp and its connectors. thoughts on how to clean the pins coming out of the amp and also the plug itself?
my thoughts are this- during the heat the pins expand and with the corrosion within the plug, causes a semi short somehow. Now thats its winter here, I dont have to hear it, such a good thing. Im heading away for a while so will get on to it when i return.
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#9
03-19-2011, 08:32 PM
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I had the same issue last week, it was caused by water getting in, I sprayed it with an electrical moisture remover and degreaser and now it's back to normal.
__________________
We never have problems, we always need solutions
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