deannerene Posted June 17, 2017 Report Share Posted June 17, 2017 I was trying to find out what this wire does. I know it says "Mute" but is it an input the makes the unit mute or is it an output that mutes other things when the unit is muted? If it is a control, is it actuated with a High(12V) signal or a low (GND) signal. One of the things I miss is a single button mute. My car does not have built in controls for the sound system and I am looking for a way to make this happen. Quote Link to post Share on other sites
tonton81 Posted June 18, 2017 Report Share Posted June 18, 2017 usually for things like this, a DMM helps, testing the wire voltage when pressing MUTE, if theres no signal change, it's an INPUT, if theres a change, it's an OUTPUT usually, its also in the installation manual, that most people tend not to read. Quote Link to post Share on other sites
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