diff --git a/__install__.py b/__install__.py
new file mode 100644
index 0000000..9a9aa6d
--- /dev/null
+++ b/__install__.py
@@ -0,0 +1,41 @@
+#!/bin/python
+#
+import os
+import sys
+
+SERVICE_FILE = """
+[Unit]
+Description=Exec Command Service
+After=network-online.target
+Wants=network-online.target
+[Service]
+User=%(UID)d
+Group=%(GID)d
+ExecStart=%(MY_PATH)s/exec_command.sh
+Type=simple
+[Install]
+WantedBy=default.target
+"""
+
+
+def help():
+    print("Usage: prog <UID> <GID> <TARGET_PATH>")
+
+if __name__ == "__main__":
+    if len(sys.argv) == 4:
+        try:
+            uid = int(sys.argv[1])
+            gid = int(sys.argv[2])
+        except ValueError:
+            help()
+        else:
+            if os.path.isdir(sys.argv[3]):
+                with open(os.path.join(sys.argv[3], 'exec_command.service'), "w") as fh:
+                    fh.write(SERVICE_FILE % {
+                        "MY_PATH": os.path.dirname(os.path.abspath(__file__)),
+                        "UID": uid,
+                        "GID": gid})
+            else:
+                help()
+    else:
+        help()
diff --git a/example_config/config.py b/example_config/config.py
index 0427260..668f0d1 100644
--- a/example_config/config.py
+++ b/example_config/config.py
@@ -11,7 +11,7 @@ MQTT_SERVER = "host"
 
 TOPIC = 'topic'
 PAYLOAD = b'payload'
-COMMAND = "aplay ring.wav -D plughw:UACDemoV10,0"
+COMMAND = "aplay %s/ring.wav -D plughw:UACDemoV10,0" % __BASEPATH__
 
 #
 # Logging
diff --git a/ring.wav b/ring.wav
index 52a944f..0d2fdc0 120000
--- a/ring.wav
+++ b/ring.wav
@@ -1 +1 @@
-sounds/phone-incoming-call.wav
\ No newline at end of file
+sounds/door-bell.wav
\ No newline at end of file
diff --git a/sounds/door-bell.wav b/sounds/door-bell.wav
new file mode 100644
index 0000000..37ae04c
Binary files /dev/null and b/sounds/door-bell.wav differ