Custom Actions appears on Android Auto, but not on Android Wear.

I'm developing Audiobook app. In this app more important is seeking than changing items on playlist.

I disabled actions `ACTION_SKIP_TO_NEXT` and `ACTION_SKIP_TO_PREVIOUS` in `TimelineQueueNavigator`. Then I provided custom actions to `MediaSessionConnector` by method `setCustomActionProviders()`.

It works great on Android Auto, but on Android Wear, custom actions does not appear.

I have tried many solutions, but I can't display custom action on Wear. I know that is possible, cause Spotify app displays custom Heart icon.

I have idea for workaround, in the `TimelineQueueNavigator`, I can handle next/prev action with my custom code and override icons, but I can't find drawable that is used in Android Wear and Android Auto, responsible for next/prev action. Unfortunately Android Wear and Android Auto is not open source, so I can't find resourceId.

Any help?