FWIW, like I posted in your other thread, that's a noticeable difference for us comparing our EX & LX. Our last vehicles both had them. Come to think of it, the vehicles before those had them too. Once you get used to an outside temp display, you miss it when it's not there. No, it isn't the end of the world, but there a much sillier mods being discussed here too - at least this one serves some purpose other than purely cosmetics.
It's his car - if he thinks the mod is worth investigating, why flame him for it?
My wife drives the LX and loves the car - the only complaint she has about it is lack of outside temp display. So it
does matter to some people.
I hope you do find a good solution - it might work for our car too.
p.s. - mods jumping in squashing the guy's idea FTL.