replacing side mirror housing on Ridgline
 

Telephone pole cracked my housing on my sideview passenger side mirror.
I've bought the replacment, and see the screws to hold it, but wondering
about the mirror component itself, it must be removed before replacing
housing. Any instructions? Should I worry about electrical shocks or
screwups? I'm a female trying to not have a costly repair bill on my Honda
Ridgeline. Thanks!