What is "lights on signal" wire to the radio?

Discussion in 'General Motoring' started by Frank, Apr 19, 2008.

  1. Frank

    Frank Guest

    I'm replacing the headunit and this wire called "lights on signal" from the
    dash radio wire harness to be connected to one of the terminals on the new
    radio wire harness. There is no corresponding "lights on signal" terminal on
    the new radio wire harness. What does the "lights on signal" do and where
    should it be connected? Could it be connected to the "+12V ignition" wire to
    the radio?
     
    Frank, Apr 19, 2008
    #1
  2. Frank

    Walt Kienzle Guest

    Many aftermarket headunits don't require the signal to adjust the panel
    light brightness. Factory radios use this when the headlights are switched
    on, therefore it is a "[head]lights on signal". Just cover it with
    insulating tape; don't connect it to anything. If you do, you will likely
    blow fuses or cause other problems.
     
    Walt Kienzle, Apr 19, 2008
    #2
  3. Frank

    Frank Guest

    Bingo, thanks Walt!
     
    Frank, Apr 19, 2008
    #3
  4. Frank

    Roland Messerschmidt Guest

    ....but many other do use this signal anyway.

    It's not only a (digital) on/off signal, but a signal to dim the radio
    display with the dashboard lights.



    Roland
     
    Roland Messerschmidt, Apr 19, 2008
    #4
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