/etc/xdg/autostart/mpdris2.desktop is in mpdris2 0.7+git20151224-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | [Desktop Entry]
Name=Music Player Daemon
Comment=MPRIS 2 support for MPD
Exec=mpDris2
Icon=audio-headphones
StartupNotify=false
Type=Application
Categories=Audio;Music;Player;AudioVideo;
NoDisplay=true
X-DBUS-ServiceName=org.mpris.MediaPlayer2.mpd
X-GNOME-UsesNotifications=true
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