Driver Mirror Glass Replacement

Thanks in advance for you help!!
2003 CTS with broken glass on the driver side mirror.  How "easily" is the mirror to replace and how is it done??  Just the glass is broken....
 
Thanks!!!!

Hey Sami:  Just take the car to a good glass shop and they will take a template of the mirror and make on to fit onsite. They may do it as you wait or maybe if they are busy may get you to come back. Mine cost $20.00 but then I know the owner so??????who knows. Good luck and enjoy your ride.

Check out Multivex mirrors for the driver's side