GPS sender for speedometer

demon322 said

Somewhat on the same topic - my autometer gauges are LED lit. Did any of you wire in an LED dimmer (AMs is #9114) in your install?

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I did. It's not super-linear like a potentiometer with incandescent bulbs, but it's not a bad approximation. Although, I find my Ultra Lite II gauges to be a bit on the dim side, so I usually have them turned up all the way. If I did it again, I wouldn't bother with the dimmer.