Here's the video. https://www.youtube.com/watch?v=7BCjZ7OIM_o This has been going on for about a week now. It hasn't caused any issues, car starts and runs absolutely fine. I thought it was maybe a low FAST key battery, so I switched to my spare (which has only been used maybe 3 times in the 2 years I've had the car), and it does the same thing. I suppose it is still possible that both batteries are low, I'll try and get a new battery. Any other ideas on what this could be?