So there's a Video on Youtube that shows how to remove the Old style side mirrors with a square type backing.
As it states in the Video you push the top of the mirror in and with a flat blade screw driver you push 2 tags in, after that it will need to be peeled up from the bottom to remove the...
Sorry have had a new born so been enjoying the time with here while at home. Not much has been done lately but will post some more pictures when I get home, 28th of this month.