I have an Escort Passport 9500ix and have mounted it on the windshield of my Model S with suction cup. I have observed that the detector has trouble with GPS signals. It takes about 1/2 to 1 hrs before the detector can latch onto the GPS signal in the morning, however after that if one powers off the radar detector and power it back on it connects to the GPS signals immediately I have even tried to hold the detector outside the car via the sunroof, the problem persists. If the detector is moved to another car it works with out any issues.... Has any one faced similar issues and have been able to resolve it. Other GPS devices like iPhone or Garmin work just fine. The GPS in the Escort is used for information on speed cams and to avoid false alerts and static speed display indicators found on the road. Any help on this would be appreciated.