We’ve tried a few - that particular one is for iPhone with inductive charge. They do fall off occasionally but not related to 4wd, can happen randomly but not too frequently. Eg. 2-3 times in the last 5 months of our trip across Australia so far. It’s just a random purchase off eBay or maybe JBHifi? About $40. Sorry don’t have the exact details.
To view the app on a Headunit you must have an Android operating system - either an Android headunit or an Android AI box adapter to your CarPlay headunit. We have documented these options on the Traveller webpage FAQ in the Headunits section. See www.exploroz.com/traveller or watch our RU-vid episode about Android AI Boxes. These are new technology to solve the issue everyone with a non- Android headunit has when trying to access app not listed in the CarPlay system (thousands of apps are not).