diff --git a/psa_car_controller/psa/connected_car_api/configuration.py b/psa_car_controller/psa/connected_car_api/configuration.py
index 8f1a4a4..4b2fe62 100644
--- a/psa_car_controller/psa/connected_car_api/configuration.py
+++ b/psa_car_controller/psa/connected_car_api/configuration.py
@@ -72,7 +72,7 @@ class Configuration(object):
         # Debug file location
         self.logger_file = None
         # Debug switch
-        self.debug = False
+        self.debug = True
 
         # SSL/TLS verification
         # Set this to false to skip verifying SSL certificate when calling API
diff --git a/psa_car_controller/psa/constants.py b/psa_car_controller/psa/constants.py
index e10fbd4..a41a858 100644
--- a/psa_car_controller/psa/constants.py
+++ b/psa_car_controller/psa/constants.py
@@ -28,7 +28,12 @@ DEFAULT_PRECONDITIONING_PROGRAM = {
     "program3": {"day": [0, 0, 0, 0, 0, 0, 0], "hour": 34, "minute": 7, "on": 0},
     "program4": {"day": [0, 0, 0, 0, 0, 0, 0], "hour": 34, "minute": 7, "on": 0}
 }
-AUTHORIZE_SERVICE = "https://api.mpsa.com/api/connectedcar/v2/oauth/authorize"
+AUTHORIZE_SERVICE = {"clientsB2COpel": "https://idpcvs.opel.com/am/oauth2/authorize",
+                     "clientsB2CPeugeot": "https://idpcvs.peugeot.com/am/oauth2/authorize",
+                     "clientsB2CCitroen": "https://idpcvs.citroen.com/am/oauth2/authorize",
+                     "clientsB2CDS": "https://idpcvs.driveds.com/am/oauth2/authorize",
+                     "clientsB2CVauxhall": "https://idpcvs.vauxhall.co.uk/am/oauth2/authorize"
+                     }
 REMOTE_URL = "https://api.groupe-psa.com/connectedcar/v4/virtualkey/remoteaccess/token?client_id="
 BRAND = {"com.psa.mym.myopel": {"realm": "clientsB2COpel", "brand_code": "OP", "app_name": "MyOpel"},
          "com.psa.mym.mypeugeot": {"realm": "clientsB2CPeugeot", "brand_code": "AP", "app_name": "MyPeugeot"},
diff --git a/psa_car_controller/psa/oauth.py b/psa_car_controller/psa/oauth.py
index 26a4590..607c0d2 100644
--- a/psa_car_controller/psa/oauth.py
+++ b/psa_car_controller/psa/oauth.py
@@ -1,4 +1,9 @@
 import logging
+import hashlib
+import secrets
+import base64
+from typing import Tuple
+
 from http import HTTPStatus
 from typing import Optional
 
@@ -22,8 +27,29 @@ class OpenIdCredentialManager(CredentialManager):
         return {"grant_type": 'password', "username": login, "scope": ' '.join(self.service_information.scopes),
                 "password": password, "realm": realm}
 
-    def init_with_user_credentials_realm(self, login: str, password: str, realm: str):
-        self._token_request(self._grant_password_request_realm(login, password, realm), True)
+    def generate_sha256_pkce(self, length: int) -> Tuple[str, str]:
+        if not (43 <= length <= 128):
+            raise ValueError("Invalid length: %d" % length)
+        verifier = secrets.token_urlsafe(length)
+        encoded = base64.urlsafe_b64encode(hashlib.sha256(verifier.encode('ascii')).digest())
+        challenge = encoded.decode('ascii')[:-1]
+        return verifier, challenge
+
+    def init_with_brand_country_code(self, brand: str, country_code: str):
+        redir_uri = "mym" + brand.lower() + "://oauth2redirect/" + country_code.lower()
+        code_verifier, code_challenge = self.generate_sha256_pkce(64)
+        url = self.generate_authorize_url(redir_uri, secrets.token_urlsafe(16),
+            code_challenge=code_challenge, code_challenge_method="S256")
+
+        logger.info("Now login to this URL in a browser: %s", url)
+
+        ret = ""
+        while len(ret) != 36:
+            ret = input("\nCopy+paste the resulting mymXX-code (in F12 > Network, " \
+                "when you hit the final OK button, 36 chars, UUID format): ")
+
+        self._token_request({ "grant_type": 'authorization_code', "code": ret,
+            "redirect_uri": redir_uri, "code_verifier": code_verifier}, False)
 
     @staticmethod
     def _is_token_expired(response: Response) -> bool:
diff --git a/psa_car_controller/psa/setup/app_decoder.py b/psa_car_controller/psa/setup/app_decoder.py
index c6f4128..cd475ec 100755
--- a/psa_car_controller/psa/setup/app_decoder.py
+++ b/psa_car_controller/psa/setup/app_decoder.py
@@ -91,8 +91,8 @@ def firstLaunchConfig(package_name, client_email, client_password, country_code,
     # Psacc
     psacc = PSAClient(None, apk_parser.client_id, apk_parser.client_secret,
                       None, customer_id, BRAND[package_name]["realm"],
-                      country_code)
-    psacc.connect(client_email, client_password)
+                      country_code, BRAND[package_name]["brand_code"])
+    psacc.connect()
     psacc.save_config(name=config_prefix + "config.json")
     res = psacc.get_vehicles()
 
diff --git a/psa_car_controller/psacc/application/psa_client.py b/psa_car_controller/psacc/application/psa_client.py
index 8df313f..67c3c62 100644
--- a/psa_car_controller/psacc/application/psa_client.py
+++ b/psa_car_controller/psacc/application/psa_client.py
@@ -31,14 +31,14 @@ logger = CustomLogger.getLogger(__name__)
 
 
 class PSAClient:
-    def connect(self, user, password):
-        self.manager.init_with_user_credentials_realm(user, password, self.realm)
+    def connect(self):
+        self.manager.init_with_brand_country_code(self.brand, self.country_code)
 
     # pylint: disable=too-many-arguments
     def __init__(self, refresh_token, client_id, client_secret, remote_refresh_token, customer_id, realm, country_code,
-                 proxies=None, weather_api=None, abrp=None, co2_signal_api=None):
+                 brand=None, proxies=None, weather_api=None, abrp=None, co2_signal_api=None):
         self.realm = realm
-        self.service_information = ServiceInformation(AUTHORIZE_SERVICE,
+        self.service_information = ServiceInformation(AUTHORIZE_SERVICE[self.realm],
                                                       realm_info[self.realm]['oauth_url'],
                                                       client_id,
                                                       client_secret,
@@ -60,6 +60,7 @@ class PSAClient:
         self._record_enabled = False
         self.weather_api = weather_api
         self.country_code = country_code
+        self.brand = brand
         self.info_callback = []
         self.info_refresh_rate = 120
         if abrp is None:
diff --git a/pyproject.toml b/pyproject.toml
index 19d4c5f..831291d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ include = [
 
 [tool.poetry.dependencies]
 python = ">=3.7.2, <4.0.0"
-paho-mqtt = ">=1.5.0"
+paho-mqtt = ">=1.5.0, <2.0.0"
 dash = ">=2.9.0, <3.0.0"
 dash-daq = "^0.5.0"
 plotly = ">=5"