diff --git a/homeassistant/components/cast/media_player.py b/homeassistant/components/cast/media_player.py
index c5914e93cc7c..0ca7f5f16821 100644
--- a/homeassistant/components/cast/media_player.py
+++ b/homeassistant/components/cast/media_player.py
@@ -53,7 +53,7 @@ from homeassistant.const import (
     STATE_PLAYING,
 )
 from homeassistant.core import HomeAssistant, callback
-import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.network import NoURLAvailableError, get_url
 import homeassistant.util.dt as dt_util
@@ -463,8 +463,9 @@ class CastDevice(MediaPlayerEntity):
         # Create a signed path.
         if media_id[0] == "/":
             # Sign URL with Home Assistant Cast User
-            config_entries = self.hass.config_entries.async_entries(CAST_DOMAIN)
-            user_id = config_entries[0].data["user_id"]
+            config_entry_id = self.registry_entry.config_entry_id
+            config_entry = self.hass.config_entries.async_get_entry(config_entry_id)
+            user_id = config_entry.data["user_id"]
             user = await self.hass.auth.async_get_user(user_id)
             if user.refresh_tokens:
                 refresh_token: RefreshToken = list(user.refresh_tokens.values())[0]