Front doors I fitted hertz dsk 160.3, crazy price at AUD120, and rears are Alpine SPC-170 C-Series, full price at AUD119. Both were around 56mm depth. So as long as the mounting depth isnt beyond 56mm, you should be ok.
This was super useful!
Gives you peace of mind when you have to use quite a bit of force to remove trim pieces and you're sure it's just clips there and you haven't missed any bolts.
For 2019 Fastback the head unit top cover is slightly different, you don't need to push it to one side, it just lifts up.