Why would the wireless charger have any connection to iStop? The Mazda (and some other brands) wireless chargers seem to be prone to overheating. That's why they turn off.
It's weird that they don't! My CX-50 has the seat and mirror positions tied to the keyfob(s), but you do have to program...
Search for "Ghost touch" in the forums. You'll find plenty of info. There was a class-action suit and Mazda has extended the warranty for 2 more years to replace the screen. You'll need to go to your dealer.
But that doesn't explain it. You originally said you were trying to install a front camera but having issues. Fine. Then you said:
SO, which camera are you now talking about, front or rear??
Well, he said he was working on his airbag module, so I naturally assumed it was the dash he meant. You know, given there's no airbag in the center console? "lol"
I'm a little confused, why would the wire be in the B-pillar?
Anyway, I assume you just mean to tie into the power LOCK part of the liftgate (not the power LIFT part). There isn't really a "signal" wire, but lock/unlock voltage wires. See attached the PDFs for the area in question. These...