My instrument cluster has a battery gauge which seems to operate normally, but then it flickers when using the turn signals.
Can anyone with a battery gauge tell me if yours does that too? I'm trying to figure out if this is normal, or if I have a grounding issue somewhere.
I recently checked out a friend's jeep to see if it did the same thing, but that one doesn't flicker at all (I know they are different, but I was trying to see if it was a normal thing with with these gauges)

Here's a video of it, it flickers the same way when either turn signal is on, and also when the hazards are on. I seems like the flicker is more subtle with the hazzards, but that could just be my imagination.
So what do you think? Normal, or not?



BONUS QUESTION:
Anyone know the meaning of the two colors used on the gauge needles? Not very obvious on this video, but they are definitely different color. The speedometer, tach, and battery gauges are pale yellow; the fuel, oil, and temp are orange.