So let's get this Straight: Rear Defroster speaker location

[Topcat]

I swear I saw OEM...Speaker pics on the inside; and also outside towards the trunk opening.

Logic says Speaker outside to avoid air flow condensation.

Yet speaker outside means Acoustics wouldn't be nearly efficient.

What gives?

[anlauto]

Same answer as what came first the chicken or the egg.....I'm pretty sure there's been "documented"  versions either way....