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Thread: Audiovox Fm Modulator

  1. #1
    Newbie
    Join Date
    Dec 2007
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    3

    Audiovox Fm Modulator

    Hello,

    I am not really that new to the world of car audio but am having a problem with the simple installation of a newley purchased FM modulator and hopefully you knowledgeable people can help me out.....

    I installed the FMM100A into my father's 2000 chevy silverado so I he could play his mp3 player through the factory radio. I have checked and re-checked every possible aspect and cannot get any sound through the FM selected frequency.

    The install is very basic, connect the power to the positive on the battery (or radio power), ground to a ground, plug the modulator basically inline between the in and outs of the antenna route (with adapters), plug the mp3 player y adapter into the rca inputs of the modulator and flip the switch and you should be able to hear sound on 88.7 or 89.1 as long as you match the selected frequency on the modulator to the tuned radio station. I can hear a slight difference when I flip the switch on. I can hear a slight radio station coming in (you know when you are one frequency away and the radio is trying to pull in the signal) and when I flip the switch on it cuts it to complete static and I cant hear any reception. I am assuming this is what I want to since it is a sign it is cutting the radio reception out so I can play the signal from the input device.

    The only possible thing I can think of is for some reason the one adapter from standard to GM mini size is not allowing the signal but the radio stations come in when in regular radio mode so I don't think that is it. Also, they make a FMM100A and FMM100 but I think the only difference is an inline filter for noise.

    What an I doing wrong?

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
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    Elsewhere
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    13,948
    Moved to Car Audio.


    This forum is dedicated to CarPCs and installing them in your car.

    The car audio forum is dedicated to integrating your car audio system with your CarPC.

    For specific questions related to car audio equipment systems that do not include CarPCs, I would recomend checking out car audio specific forums:

    http://www.elitecaraudio.com
    http://www.carsound.com
    http://www.caraudioforum.com
    http://forum.sounddomain.com
    http://www.realcaraudio.com
    http://www.carstereo.com
    http://www.caraudiomag.com
    http://www.termpro.com
    http://www.the12volt.com
    http://www.talkaudio.co.uk
    http://www.caraudiosecurity.com
    et. al.

    There is a chance that someone on here might have an answer for you, I would just hate for you to wait around for it when I know you could get an answer much quicker on a dedicated forum.

    Good luck.

    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  3. #3
    Low Bitrate
    Join Date
    Nov 2007
    Posts
    98
    turn on the modulator and hit scan on the radio. see if it finds another ch.

  4. #4
    Newbie
    Join Date
    Dec 2007
    Posts
    3
    Quote Originally Posted by DarquePervert View Post
    Moved to Car Audio.


    This forum is dedicated to CarPCs and installing them in your car.

    The car audio forum is dedicated to integrating your car audio system with your CarPC.

    For specific questions related to car audio equipment systems that do not include CarPCs, I would recomend checking out car audio specific forums:

    http://www.elitecaraudio.com
    http://www.carsound.com
    http://www.caraudioforum.com
    http://forum.sounddomain.com
    http://www.realcaraudio.com
    http://www.carstereo.com
    http://www.caraudiomag.com
    http://www.termpro.com
    http://www.the12volt.com
    http://www.talkaudio.co.uk
    http://www.caraudiosecurity.com
    et. al.

    There is a chance that someone on here might have an answer for you, I would just hate for you to wait around for it when I know you could get an answer much quicker on a dedicated forum.

    Good luck.


    Hey thanks, I appreciate your concern and effort!

  5. #5
    Newbie
    Join Date
    Dec 2007
    Posts
    3
    Quote Originally Posted by Mylt1 View Post
    turn on the modulator and hit scan on the radio. see if it finds another ch.

    already tried that

  6. #6
    Maximum Bitrate
    Join Date
    Jun 2005
    Location
    chicago, Illinois
    Posts
    752
    2 possibilities:
    1.) Simply put, bad unit

    2.) If you attempted to install this inline of the antenna line at any other place but behind the radio. If and only if you didnt hook it up directly to the back of the radio with the help of antenna adapters, there are some GMs that the antenna line connectors are the reverse of what is behind the radio.
    For example, The radio has a female plug, and the antenna is male ended. But some disconnection points in the line of the antenna have the radio side of the cable male and the antenna side is female.
    My reasoning behind this is when you activate the some FM mods it interrupts the antenna line and sends the signal to the radio. So if its backwards all its doing interrupting and sending the signal towards the antenna. So make sure that the FM mod's male plug is facing towards the radio.
    "In the beginners mind there are many possibilities, but in the experts mind there are few."- Shunryu Suzuki
    "Do it right or don't do it at all"

    PROGRESS:
    [-------90%-] (New Car=New Build)

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