I really don't see the need for the mirror.
If you want to see how cold it is outside
just roll the window down and stick your head out. The only time I ever had a problem with
high beams from other vehicles, is when a
lifted Ford sitting on 44 inch mudders got behind me. And is a compass really necessary?
If you have to go someplace thats warrants a
compass, I think a cheap Timex, with compass
will do just fine.