speaker locations

There is a spot for speakers in the doors. Lower front corner. Good grilles for them are impossible to find. I have a pair of black 67 vert door speaker grilles but thay aren't flat today. Too much speaker and grille there will interfear with the window winder.
There is a aluminum plate for mounting 2 speakers in the center of the dash. I dont have a link to the seller.
There should be a way to put speakers in the bottom of the vent boxes. I dont know how they would sound facing the floor though.