I accidentally opened my sunroof today, and for the first time since I've had the car, I had no music on or anything. I noticed something which I was not sure if it is always supposed to happen. After the sunroof is completely closed and the button is still depressed, you can still hear the motor turning. Is this supposed to happen or is some relay or switch not working to tell the motor to stop? Thanks.

 

That is completely normal. Don't hold it too long, you could burn out the motor.