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Originally Posted by M3OZ
Strange, I'm having the EXACT same problem on my M3. I had TV tuner and CD changer. Installed the MK4 setup and no voice, when I'm listening to music, it cuts in ever so quietly but nothing actually comes out of the nav.
Any help would be most appreciated!
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For OLD GEN RADIOS which share TV and Nav Voice on the same input:
Check wiring of the audio output of the nav:
Nav blue plug:
Pin 9 = voice signal, blue/red wire, goes to pin 3 of the TV tuner (video module) white plug
Pin 18 = voice ground, blue/brown wire, goes to pin 12 of the TV tuner white plug
Check in particular that:
a) the wires are not reversed
b) that the voice signal is not shorted to ground (measure with ohmmeter on high ohms range)
For NEW GEN RADIOS which have different TV and Nav Voice inputs:
Check wiring of the audio output of the nav:
Nav blue plug:
Pin 9 = voice signal, blue/red wire, goes to pin 5 of the small connector on the radio tuner (radio module) main plug
Pin 18 = voice ground, blue/brown wire, goes to pin 11 of the small connector on the radio tuner (radio module) main plug