’03 evolution 4ch, cracks, pops
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=121987
Printed Date: April 28, 2024 at 11:38 PM
Topic: ’03 evolution 4ch, cracks, pops
Posted By: w8lifter21
Subject: ’03 evolution 4ch, cracks, pops
Date Posted: May 24, 2010 at 5:52 PM
4ch installed has crackles, whines, and pops. Pops when preset button and seek buttons are pressed. Turn the car to acc and a low wine is heard. Turn the volume up and the whine can be masked with radio audio. Turn the key to ign and the whines get louder, and a separate wine can be heard when what I think the fuel pump is priming. Start the car and alternator whine can be heard.
The car:
'03 with a AMS built '06 motor.
Electronics in the car I have seen so far:
-AEM Standalone
-HKS Turbo timer
-AEM Wideband
-AEM Boost
-SnoPro Meth injection pump, side of the trunk
Equipment installed:
-NEW Infinity (non OEM) components in the front
-NEW Alpine Type S rear
-NEW Orion XTR 4ch amp
-NEW Kinetik Racing battery(located in the rear)
-NEW Pioneer LCD Screen
How equipment was installed:
-Speakers in factory locations using speaker harnesses
-Factory Amp under driver’s seat bypassed, tone generator used to verify polarity and speaker location(Including tweeters)
-Orion Amp installed on trunk floor, left side on an amp rack about 18inches from the Kinetik battery installed in the middle of the spare tire well.
-SnoPro pump located on the right side of the spare tire well
-Power is 2.5 ft long and goes from amp to battery, ground is solid verified by DMM
-Power wire ran down passenger side
-RCA ran from the radio, down driver’s side
-Speaker wire ran down driver’s side from under the seat, to the Orion amp. Speaker connections are under the seat to the factory amp plug which has been disconnected from the amp completely.
What has been tested:
-First thought a bad radio ground. Found new ground with a DMM, no difference.
-Thought it could be the radio, changed to the pioneer, no difference
-Thought it could be bad RCA, so a brand new set were connected to the radio and ran outside the car to the amp in the back, no difference.
-Speaker wire/RCA are not close to any other wires or fuse boxes in the car, and what few places they do have to cross a power wire in the trunk, it is done at a 45 or 90 degree angle.
Not sure where I could be picking up this feedback from. Could there be another factory amp installed in the car somewhere? Suggestions on where/what else to check? I’m stumped:errr:
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Refined Performance Motorsports
Replies:
Posted By: gabedemelo
Date Posted: May 24, 2010 at 8:03 PM
bad coil or plug wires?
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GreenGables
Posted By: i am an idiot
Date Posted: May 24, 2010 at 9:14 PM
Posted By: w8lifter21
Date Posted: May 25, 2010 at 12:16 PM
i am an idiot wrote:
https://bcae1.com/images/rca/temporaryrcashieldrepair.html
Could it be weak RCA shielding? I've tried two radios and 3 sets of RCAs so I don't think it's a defect in the cable or radio, but maybe just poor quality shielding in the cables. Good point, thanks for the link, not sure why that thought didn't cross my mind lol. ------------- Refined Performance Motorsports
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