Tonight I unlock my car, bone stock 2005 base 6spd 57,xxx miles, and my driver side mirror started moving rapidly up and down about 1 1/2 - 2cm each direction roughly. The button is set in the middle so the mirrors can't be adjusted or move down for reverse. This lasted for maybe 15-20 seconds. It is cold out but the car has been in much colder conditions and this has never happened. It has happened when I've used it in reverse just that "popping" in and out of position but never this. Anyone else experience this? I'm thinking maybe the motor is starting to go?