This GPS unit has been reconfigured (with proper connectors) ready to work with our electronic speedometers. All you need to do is provide 12v power source to red wire. Although reconfigued, the unit could also work with custom installations, early model transmission applications, and all 16,000 pulse electronic speedometers.
-Red: +12V. -Black: Ground -White: 16000 pulse Signal Output (used for speedometer signal)
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