So ... I finally got this setup to work. But only on track power. If I take out the jumper and connect to aux in and aux gnd under the switch, it does nothing. The lantern on the switch doesn’t light up, the momentary toggle switch doesn’t work, and the LED doesn’t light up. And when I try to apply track power to the rest of the layout, the voltmeter on the MTH Z-4000 reads 1.6 volts and starts to buzz if I move the lever forward. And the voltage will not increase when I move the lever. But on track power it all works perfectly. What am I doing wrong?
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