[Bitte ein Bit]

Update:

My wife reminded me she went for a run yesterday morning 5am or so and later in the day told me I must have left the compressor on or the water softener system was running loud in the garage. Something was loud in the garage...

I heard it also but it didn't click at that point as one neighbor is doing yard work/landscaping and another is remodeling their home - thought it might have been something in relations to that - not at 5am of course but later that morning.

We now think it was the car trying to turn over - on its own...at 5am in the garage.

Is that possible with just a failing starter???