I need a driver side tweeter mount (hard plastic) and also the rubber piece that the top part of the tweeter mount and side mirror goes into. This is also the rubber piece that is the farthest on the top of the door the window goes into.

 

Dealer

https://my350z.com/forum/vendor_directory.php

 

Or check local junk yards

 

Weatherstripping is here.
http://www.courtesyparts.com/350z-pa...5_846_854.html

Here's the plastic cover.
http://www.courtesyparts.com/350z-pa...5_871_873.html


Man lots of lazy people lately who can't seem to search.

 

here's carbon fiber version of plastic cover if you're interested

http://www.rhdjapan.com/rsw-carbon-d...irlady-z-56380

 

this guy is parting out his entire interior. he might still have what you're looking for

https://my350z.com/forum/interior/55...arts-alot.html