question about autoinput

[Steve]

I'm trying to setup a ps4 controller so that i can use it to do various things with tasker. However most apps apparently will take the controller input and try to select or choose elements themselves. Even the android home screen hitting controller keys or shoulder keys selects apps to launch! In the case of the waze app what I've been doing is using the keys waze doesn't interpret (only 2 or 3) to control the media player in the background while driving and not needing to handle the phone. This is working sort of ok in this specific case. Is there a way to block the controller's input, or capture it completely so apps don't use it?

I also had an idea to free up all the keys by using a scene in overlay mode from the scene tab. That way the keypresses go to the scene and don't interact with the app. I think it has to be blocking though otherwise you can select icons and do actions even under the overlay. Once it works though all the controller input goes into the scene and thus I can capture it without issues.  However Autoinput can't do anything either with my other tasks. So for example with waze I have a task to read the info off the screen and read it aloud like my current speed. With an overlay over the waze app autoinput can't dump the text anymore. I'm really stumped and don't know how to proceed, does anybody have ideas?