I used it with Hertz CK 165 midrange driver/tweeter combo

Tweeter mount is only compatible with power side mirrors but it's better to use the interior mirror cover for manual mirrors since it has hole in the middle for the cables (mirror covers for power mirrors can also be used but you will have to cut a hole in it). Either way you have to drill two 3mm holes for mounting it to the cover. Take your time to mount it in a correct angle. I didn't and it's angled down a little more than I would like.

The 165mm driver has to be used without the front "grill" cover otherwise it hits the cover on the door panel. No issues on the inside with this driver, you can roll the windows down as low as you want. The driver si mounted to the adapter with M4 screws and you have to use heat threaded inserts in the adapter. Also I recommed to put some foam between the adapter and the door.

I also designed the divider mount but it was not a good design as it was vibrating (divider is positioned in the only place I could think of placing it since there is not a lot of space between the door and the door panel). I now designed different one which uses two bolts for mounting it to the door but haven't tested it yet. On this one you also have to use heat threaded inserts. Divider mount is only compatible with power windows.
Photo is of the old divider mount.