You’d be wrong. If you followed mazda3revolution forum you’d have long since seen the hardware required. Yes, it’s a swap of the USB hub and some other wiring.guarantee it is purely a software upgrade that just enables higher power on the port. not a chance they are swapping out hardware for that price but they will charge you a labor rate regardless.
[doublepost=1542813864][/doublepost]
They said it would only be free for 2018 Mazda 6.Mazda has only been talking about this for a couple of years now. I thought this was supposed to be a free upgrade. I guess it's better late and $ than never.