Ionic - iOS - access to all photos, video and audio

Working on Ionic app, I need to get an access to all relevant media - photos, videos and audio. Also would be nice to be able to pick downloaded files in iTunes.
Currently using the ionic-native/camera plugin and have an access to photos library.
Still need an access to audio. Also tried to use IOSFilePicker, but it gives access only to iCloud and shared folders of other apps (e.g. GarageBand, Keynote, etc.).
Is there any way to get an access to all those media?