Hey Bob,
I'm doing the same thing for my 2017 Mazda 3 Grand Touring right now, and I just did the same thing to my wife's 2016 Mazda CX-5 Grand Touring. Both cars have the same Bose system with all the same parts. Five of the speakers are 3.5 in (FL, FC, FR, RL, and RR) running at 3 ohms...