"Christian McArdle" wrote in message
. net...
snip

2. I want to use it as a rear view mirror, too, as I don't currently have
one and the door mirrors don't show what is directly behind, only traffic
that is already overtaking.

Well using it as a rear view mirror will mean a moving traffic offence or
similar.
If you learn to use your mirrors you will find that they give plenty of
visibility, if they don't you need to fit larger mirrors. WTF do you thing
drivers of lorries etc. see behind ?!...