Read login, password and url from saved prefs

To edit them:

adb shell
vi /data/data/com.njackson/shared_prefs/PebbleBikePrefs.xml

Add the following lines:
<string name="LIVE_TRACKING_LOGIN">MY_LOGIN</string>
<string name="LIVE_TRACKING_PASSWORD">MY_PASS</string>

and optionnaly (if you you to use another live):
<string name="LIVE_TRACKING_URL">LEAVE_EMPTY_TO_USE_DEFAULT_OR_PROVIDE_YOUR_OWN_URL</string>