from the inside of the door, there is a trim piece on the inside near the mirror, its triangle shaped, that is held in with a plastic "push-in" clip, remove that panel, and the nuts for the mirror bolts will be accessable with a ratchet and socket
The drivers side.
Remove the inside door panel from your 2003 Chevy Silverado pickup truck. Remove the wiring harness from your heated side mirror. Remove the mirror retaining bolts. Reverse the process to install the new mirror.
go to mirrors@automirrorglassonly.com
www.LMCtruck.com
You have to remove the inside door panel then you can see the holding assembly
you change it
how to replace passengerside outside mirror
a junkyard
Go to the following website. It will show how to remove the door panel and the side mirror. kwmuth.com
Take off the door panel and unbolt the mirror housing
how do you replace the bulb of a volvo v70xc 2001 side mirror?
driver side, adjacent to engine near oil pan