comments:
I use a wireless CarPlay adapter (this one is out of stock, but there's certainly a newer version of it available or you could use a less expensive version. This one I like because it lets me install apps from the Google Play store and side load videos that I can watch on the car's screen while I'm charging). With it, I can have Google Maps/Waze/Apple Maps running on my phone and my car's onboard navigation isn't aware of it so I can, simultaneously, use the built-in nav to route to a charging station (and precondition on the way there, if needed). In short, get a wireless CarPlay/AA adapter and use it along with your phone's navigation as well as the car's built-in navigation. Alternatively, you can do what you're suggesting and simply switch over 30-40 minutes out from the station to start preconditioning. FWIW, I have an EV6 but I have no doubt this would also work with an I5 since they're similar systems.