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<blockquote data-quote="rbf1138" data-source="post: 6809399" data-attributes="member: 622089">Today I had a wired fm modulator installed in my 2003 Lexus ES300. The one used was the &quot;Farenheit Phase Lock Loop FM Modulator (EFM-01 / EFM01).&quot; My issue seems to be that when the music is quiet/not busy, it comes through clear, but when the sounds pick up I get some seriously bad buzzing/distortion.The shop I had it installed at is extremely reputable, and they assured me it&#039;d sound better than my cassette adapter. However, if there is going to be this buzzing, it certainly isn&#039;t better. I have an on/off switch to disable the radio when i use the modulator, and there is also some little knob i can turn, though im not sure what that does. The station they have it using is apparently a good one (88.9).The best example of the problem I can give is that during the opening of Radiohead&#039;s Airbag, it&#039;s smooth until vocals come in, at which point they distort, seemingly primarily on the vocals themselves.I&#039;m wondering what may be wrong here, or what I can do to fix/improve the issue. I&#039;ll probably call the shop tomorrow, but I&#039;m interested in what you guys have to say.I should add, it&#039;s definitely not like clipping from being played too loud. I&#039;ve tried it with a Cowon player with a dedicated line-out, and even when the volume is turned down on my car&#039;s stereo, it still distorts. It&#039;s like a certain frequency in the music is screwing with the system.</blockquote>

[QUOTE="rbf1138, post: 6809399, member: 622089"] Today I had a wired fm modulator installed in my 2003 Lexus ES300. The one used was the "Farenheit Phase Lock Loop FM Modulator (EFM-01 / EFM01)." My issue seems to be that when the music is quiet/not busy, it comes through clear, but when the sounds pick up I get some seriously bad buzzing/distortion. The shop I had it installed at is extremely reputable, and they assured me it'd sound better than my cassette adapter. However, if there is going to be this buzzing, it certainly isn't better. I have an on/off switch to disable the radio when i use the modulator, and there is also some little knob i can turn, though im not sure what that does. The station they have it using is apparently a good one (88.9). The best example of the problem I can give is that during the opening of Radiohead's Airbag, it's smooth until vocals come in, at which point they distort, seemingly primarily on the vocals themselves. I'm wondering what may be wrong here, or what I can do to fix/improve the issue. I'll probably call the shop tomorrow, but I'm interested in what you guys have to say. I should add, it's definitely not like clipping from being played too loud. I've tried it with a Cowon player with a dedicated line-out, and even when the volume is turned down on my car's stereo, it still distorts. It's like a certain frequency in the music is screwing with the system. [/QUOTE]

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