In Mazda's Infotainment System Firmware v59.00.502 and higher, the CMU is locked down and users cannot access to their own systems and can no longer install tweaks. Currently the only way to circumvent this is to make a serial connection.
https://www.youtube.com/shorts/2qWP08IVZt0
You can follow the instructions here: https://mazdatweaks.com/serial/