does anyone know about getting front part that covers the mirro for pass. side on 08" mazda3 . mirro is intact and fine, needs that part only if possible without getting whole assembly. thanks Gary

 

Junk yard?

 

You could check out junkyards. Another option would be to check with some place like onlinemazdaparts, though I don't know if they sell the cover as a discreet part.

Beyond that there are a number of replacement covers which have LED signals in them if that's something you'd be interested in.