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Car Audio Help
Wiring, Electrical & Installation
Engine whine and ground loop fixes... take two
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<blockquote data-quote="cnwahlheim" data-source="post: 6764720" data-attributes="member: 618869"><p>Hi,</p><p></p><p>I recently had an audio system installed in my car by a shop who claims to be the best in the area. They truly do unique custom work, but in the case of my install, I was left disappointed. I have a 1997 Lexus LS 400 and had a HU (Alpine IDA-X305), Amp (Arc Mini 125.4), 6.5" Components (Hertz High Energy), and Sub (Hertz Energy 12") installed. The sound quality is pretty good; however, I have alternator whine coming through the passenger side tweeter. The whine persists even when the source unit is powered-down. The amp was mounted under the passenger seat and from I was told, the power and speaker wires were run together to the amp. They claim the signal wire was not run with the power wire, but I am not sure where they would have routed it. Anyway, the engine noise drives me insane. When I took my vehicle back to the shop they first told me it was the engine itself and that the sound was coming through my vents, not through the speakers (they were wrong). They proceeded to tell me that my vehicle was just old and it had "characteristics"..wtf?! Yeah, it's not brand new, but it's a quality vehicle, so I was a little put off by that comment. On my next visit, I demonstrated that the whine was coming through the passenger side tweeter and they said they couldn't do anything to fix it. They implicated my plug wires as the source of the problem. I am planning to replace the plug wires in the next month to see if that solves the problem. My question, though, is, Has anyone else has had a similar problem that was solved by replacing the plug wires? Further, does anyone have an opinion about how I should get this problem resolved by the installer if the plug wires do not fix it? I supposedly have a three year warranty on the workmanship (which is why I paid a premium for the labor expenses), but I worry that I will keep getting the run-around on this issue. Any advice or comments would be appreciated.</p></blockquote><p></p>
[QUOTE="cnwahlheim, post: 6764720, member: 618869"] Hi, I recently had an audio system installed in my car by a shop who claims to be the best in the area. They truly do unique custom work, but in the case of my install, I was left disappointed. I have a 1997 Lexus LS 400 and had a HU (Alpine IDA-X305), Amp (Arc Mini 125.4), 6.5" Components (Hertz High Energy), and Sub (Hertz Energy 12") installed. The sound quality is pretty good; however, I have alternator whine coming through the passenger side tweeter. The whine persists even when the source unit is powered-down. The amp was mounted under the passenger seat and from I was told, the power and speaker wires were run together to the amp. They claim the signal wire was not run with the power wire, but I am not sure where they would have routed it. Anyway, the engine noise drives me insane. When I took my vehicle back to the shop they first told me it was the engine itself and that the sound was coming through my vents, not through the speakers (they were wrong). They proceeded to tell me that my vehicle was just old and it had "characteristics"..wtf?! Yeah, it's not brand new, but it's a quality vehicle, so I was a little put off by that comment. On my next visit, I demonstrated that the whine was coming through the passenger side tweeter and they said they couldn't do anything to fix it. They implicated my plug wires as the source of the problem. I am planning to replace the plug wires in the next month to see if that solves the problem. My question, though, is, Has anyone else has had a similar problem that was solved by replacing the plug wires? Further, does anyone have an opinion about how I should get this problem resolved by the installer if the plug wires do not fix it? I supposedly have a three year warranty on the workmanship (which is why I paid a premium for the labor expenses), but I worry that I will keep getting the run-around on this issue. Any advice or comments would be appreciated. [/QUOTE]
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Engine whine and ground loop fixes... take two
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