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Wired fm modulator help
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<blockquote data-quote="Saint211" data-source="post: 6809585" data-attributes="member: 564903"><p>Im assuming you are using this to play an I-pod or something like it through your factory stereo. They are just like the ones we install. FM modulators are better solutions than fm transmitters and in most cases cassette adaptors, but they aren't perfect. What these modules do is introduce the audio over a wired connection. It is wired in line with the antenna of the radio, sometimes using 2 antenna adaptors. What confused me is that you said you had an on/off switch for the radio when you use the FM modulator. This isnt possible because the factory radio need to be on and tuned to the frequency you have the fm mod set to in order to work. When we do sat. radios the fm mods rarely give us an issue. We see issues more frequently when people use these generic fm mods for I-pods and such. Honestly, its hard for me to help you without looking at the vehicle, but heres issues I ran into before.</p><p></p><ul> <li data-xf-list-type="ul">problem with the 3.5mm to RCA cable<br /> </li> <li data-xf-list-type="ul">problem with the antenna adaptors<br /> </li> <li data-xf-list-type="ul">problem with the bitrate of the mp3 audio being played through<br /> </li> <li data-xf-list-type="ul">noisy power and ground source for the fm modulator<br /> </li> </ul><p></p><p></p><p>If I did the install, and you brought it back to me with this issue I would start eliminating the obvious. Fisrt, I would see if ther issue happens on normal radio/cd. If not, then I would try a different cable. If that didnt change it I would try different adaptors/make sure they are connected. Also make sure you dont have a powered antenna in the vehicle that they may have fudged with. Make sure the connections are firm. If the problem persists I would try a different power and ground source for the modulator. If it still persisted I would then try a different module.</p><p></p><p>IF they eliminate all these options its likely a bitrate/compression issue.</p><p></p><p>It reminds me of this gentleman I encountered with an FM mod in his BMW. The problem he had was at certain points in each song, there would be this strange clicking noise. It wasnt the same point in every song, but it would always happen at the same point if you replayed a certain song over and over. I went through a lot of crap to verify everything was sound and secure and the problem persisted. We ended up finding out that ith was an issue with how the audio he had was compressed.</p></blockquote><p></p>
[QUOTE="Saint211, post: 6809585, member: 564903"] Im assuming you are using this to play an I-pod or something like it through your factory stereo. They are just like the ones we install. FM modulators are better solutions than fm transmitters and in most cases cassette adaptors, but they aren't perfect. What these modules do is introduce the audio over a wired connection. It is wired in line with the antenna of the radio, sometimes using 2 antenna adaptors. What confused me is that you said you had an on/off switch for the radio when you use the FM modulator. This isnt possible because the factory radio need to be on and tuned to the frequency you have the fm mod set to in order to work. When we do sat. radios the fm mods rarely give us an issue. We see issues more frequently when people use these generic fm mods for I-pods and such. Honestly, its hard for me to help you without looking at the vehicle, but heres issues I ran into before. [LIST] [*]problem with the 3.5mm to RCA cable [*]problem with the antenna adaptors [*]problem with the bitrate of the mp3 audio being played through [*]noisy power and ground source for the fm modulator [/LIST] If I did the install, and you brought it back to me with this issue I would start eliminating the obvious. Fisrt, I would see if ther issue happens on normal radio/cd. If not, then I would try a different cable. If that didnt change it I would try different adaptors/make sure they are connected. Also make sure you dont have a powered antenna in the vehicle that they may have fudged with. Make sure the connections are firm. If the problem persists I would try a different power and ground source for the modulator. If it still persisted I would then try a different module. IF they eliminate all these options its likely a bitrate/compression issue. It reminds me of this gentleman I encountered with an FM mod in his BMW. The problem he had was at certain points in each song, there would be this strange clicking noise. It wasnt the same point in every song, but it would always happen at the same point if you replayed a certain song over and over. I went through a lot of crap to verify everything was sound and secure and the problem persisted. We ended up finding out that ith was an issue with how the audio he had was compressed. [/QUOTE]
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