If your stepper motor gauges beeps on shutdown and you please check how you have it wired up.
The instruction sheet included and the writeup on www.a4mods.com ask you to connect the yellow wire to the battery and the red wire to ignition.
Please try wiring the red and yellow wires together to the ignition instead and see if this gets rid of the beeping.
This will cut power to the gauge immediately when you turn the car off rather than have it still pull power from the battery at shutdown.
Please post in this thread your results.
Thanks,
Winston
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