John Petroviak submitted an interesting question today, and after enlarging the only photo I could find of Mazda’s implementation of wireless CarPlay for MY 2021 Miatas, and if I’m seeing it properly, it looks like they’ve changed the airbag message panel/seat-warmer switches to include a shelf for the wireless charging pad. That is based on the assumption that wireless phone charging is included in that option, which is possibly incorrect.
Consider this a discussion article, and at least for now, not an authoritative how-to… 🙂
I am guessing that rather than producing a different USB hub, since it only needs power without wired connectivity to the CMU, the wireless charger is a unique assembly with a slimmer message panel / seat-warmer switches and a phone shelf, independent of the cubby below it. I’m thinking that the power feed would be via the seat-warmer connectors though, so a car without that option might need a power wire run from the lower fuse panel, possibly resulting in 2 powered switches for seat warmers that might be otherwise useless, but if you do have seat warmers (and the CarPlay USB hub), it may very well be an easy mod!
Ash8, has reported today, that Wireless CarPlay will require firmware 74.00.200+, and although the CMU seems to be the same unit, by MY 2022, he expects that an upgraded CMU (expected to cost around the $2K mark), that includes a different display screen (no touchscreen ability), will be the norm. He surmises that perhaps by MY 2022, these upgraded CMUs will be standard in both the Club and Grand Touring Miatas.
Tristan-CX-5 stated today, that “Wireless CP requires special hardware inside the CMU. It is not just a software solution, even if both new CMUs part numbers (with and without CP) have the same firmware. So it is about the same as with wired CP/AA (same firmware, but requires hardware to be activated). You can not activate Wireless CP in a CMU which does not have the wireless CP hardware in it.” Therefore, don’t install firmware 74.00.230 thinking you’ll enable Wireless CarPlay.