Speaker holes 68 Baracuda Notchback

I think he sold them all, it was in 2020 so I get it. The bracket he created is meant to replace the 4x10 Original and fit nicely? That’s cool he made them.
Thanks for the info on the defroster, will look into this and will most likely PM you if I decide to move forward with this. If I leave it as is without the defroster set up you posted will my rear window fog up?