I understand. But with your iPhone staying in your pocket now, don't you have any issue with the battery being drained by navigation (GPS positioning consumes a lot of power)? At least on long trips, say more than 45 mn.Thanks for all that effort. Same car, but I’ve moved on to a wireless CarPlay unit and the phone stays in my pocket. Your hard work is still impressive.
That's why Apple delayed Wireless CarPlay for two years, until iPhone models have induction charging capabilities (Qi standard), and ask automotive makers to include wireless charging pads in newest cars.