68’ Dart front and rear Speaker Size

There was a member here that sold a plate so you put 2--maybe 3 inch round speakers in the center speaker spot.
I have one in mine plus the kick panel speakers both sides. Makes too much noise to worry about rear speakers.
Do you happen to know who that member might’ve been? I am trying to find a speaker for my dash but with the air-conditioning controls it needs to be a low profile speaker. The retro sound speakers I bought are too deep and interfere with the vacuum pod.