Sunroof motor
 

So My sunroof wont open or close with the power switch, I just hear a lowud buzzing noise coming from the motor. I am able to open it manually and close it manually and found that there is nothing blocking the track and the cables are fine. I was able to get a working motor from someone on another bimmerforum, but want to know if there is an easy way of accessing the motor with out ruining the head liner.

thanks