Hello again, if the car has electric mirrors then you need to remove the interior door panel to disconnect the electrical connector for the mirror, if the mirrors are manual then you don't need to remove the trim.

This is for the manual mirror, first remove the mirror interior trim by removing the blanking plug and screw as shown below

then disconnect the adjuster by turning the adjuster and pulling to remove the rubber cover then the adjuster will push through the mirror trim as shown.

Once the trim is off remove any sound proofing you can then see the four fixings for the mirror, one screw for the trim and three bolts into the mirror as shown below.

The mirror will then come off the door.

If the mirror is electric as I said earlier the door trim needs to be removed to disconnect the electrics, otherwise it is very similar, the interior mirror trim unclips instead of been screwed on, once this is off you will see the mirror retaining screws the same as a manual mirror.

I hope this answers your question but let me know if I can assist further and I'll reply as soon as I can.

Best wishes,

Sean.