High pitch noise from speakers as i accelerate

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NoPh33rRaCiNg

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lol naww im not goin to an audio shop.. damn thing is stock.... i noticed on one post someone said could be a bad diode on the alternator.. im gonna go that route

pull out the stock deck, and look on the harness for the black ground wire and reground it to a solid piece of metal in the dash. see if that helps
 

Thumper8302

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pull out the stock deck, and look on the harness for the black ground wire and reground it to a solid piece of metal in the dash. see if that helps

ill do that when i swap over my old system.... i only drive maybe 10 minutes a day so i only get to listen to like 2 songs at most.. but i pulled into work today and was makin a turn into another park lane and the truck just up and died.. just got home and noticed when i let off the gas to coast the lights dim a good deal. rpms drop around to maybe 300 and voltage drops to about 9... im prolly gonna go get the alternator tested tomorrow.. just dont wanna shell out the $200 for one... Hell i havent even got my title yet.. oh well.. gotta love swipin the plastic when ur in need.:emotions122:


oh and hey blueflamed03.. where bouts in oklahoma u at? im in the nw side okc
 

Thumper8302

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i used to live in stilly a while back... worked at the get n gallup there on lakeview and perkins once upon a time lol
 

Thumper8302

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lol yep small world it is... i need to plan a trip back to stilly.. havent been in a while..... im cravin some shortcakes lol
 

lyukonr

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hey guys, im having the same problem too, but on mine only stops if i turn off the unit, its really annoying :emotions122:... i have one of does adapters for the bose system tho, when i put the oem radio it stops, i allready tried like 3 diferent aftermarket radios and it still sounds, could it be the adaptor??
 
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kickitandholdit

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my old tahoe did that untill it was slamed into another truck it was purdy quiet then haha
 

yargnits

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Even though I'm suffering whine problems with my truck I can give you a place to look. It sounds like the same problem I had with my 91 Caprice a few years ago. Try unplugging the antenna. If the sound goes away it's a bad antenna or a coupler in the antenna wire. Caprices had a coupler that corroded causing the problem. I re-coupled it with better connectors and the whine went away.

It might not be the solution but it's worth a try.
 

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