[EC900]

You likely had a previous owner add the RH mirror, it was optional and would have had the under dash switch. I bought one for mine, didn’t paint or install it yet but the mirror glass seems stiff enough to hold up to door slams and pretty much “set and forget” by hand, so I won’t bother with adding power for it. I never did remove the door card to even see if there’s a wire loom and the connectors inside for the RH mirror.