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Car audio help!

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  • 07-11-2007 12:10am
    #1
    dsrckiyisvddht
    Closed Accounts Posts: 167 ✭✭


    It turns out after installing my bluetooth car kit I have to manually mute the head unit every time I get a call because my radio doesn't seem to have a mute thing at the rear on the ISO. What can i do so that it mutes? Any ideas? I don't want to get another head unit. Thanks ;)


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    #2
    crosstownk
    Registered Users Posts: 12,863 ✭✭✭✭crosstownk


    It looks like the radio mute is pin 11 on a Delta 6 or in block A on a Gamma.

    See the link - scroll to the bottom for the VW Delta/Gamma head units. The link is in German, but you'll get the idea ;)

    http://www.selfmadehifi.de/hifi/kfz-prod.htm
    Untitled Image




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    #3
    louie
    Closed Accounts Posts: 1,200 ✭✭✭louie


    If you have a test lamp (5 euro in the motor-factors) you can easily detect the mute wire and connect it to the yellow one from the phone kit.


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    #4
    daedalus2097
    Registered Users Posts: 615 ✭✭✭daedalus2097


    How will a test lamp show you the mute input into a stereo? Surely you'd need something to mute the stereo externally to see the signal, and the OP says he has to mute the stereo so I don't think that's the case...


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    #5
    louie
    Closed Accounts Posts: 1,200 ✭✭✭louie


    Is very simple.
    A test lamp has bulb inside which is like a conductor.
    If you earth the clip to the body of the car and pin the power wire, the bulb lights-up, but if you pin the mute wire the radio receives a very low earth signal and will mute the sound.
    Give it a try - it worked for me for the last 8 years and never failed.


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    #6
    daedalus2097
    Registered Users Posts: 615 ✭✭✭daedalus2097


    Ah, sorry - different train of thought... I'm an instrumentation engineer myself but I didn't think of that ;)


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    #7
    louie
    Closed Accounts Posts: 1,200 ✭✭✭louie


    Sometimes the simplest way is the best way.


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