As Danthurs mentioned, it'* pretty straight forward as long as the door is fine. In addition to the small door speaker that covers the bolts for the mirror, the door panel itself will also have to be removed. The wiring harness for the mirror runs down behind this to plug into the PDM (Passenger Door Module). This isn't difficult, but there is a trick to reinstalling it correctly. When my car was under warranty, two different dealerships failed to reinstall the door panel correctly ane in each case I had to re-do it myself. Our door panels are a little different than a lot of other cars.
What colour do you need?
How do you take off the small speaker panel? I tried to pull out by hand, it didn't pop up; should I force it more? Thanks.