Sideloading Android Auto apps comes with some hidden drawbacks
One complaint about Android Auto (and Apple CarPlay) that sometimes gets lost in the shuffle is app access. There are a growing number of compatible apps on both platforms, but unless a developer specifically builds out car features, an app won’t appear on your dash. That can be extremely disappointing if you were counting on support. In some cases, it may not even make sense, say if the app you want serves a similar purpose to one that made the cut.