1. Go to Settings and check your GPS Monitor, Make sure you have Green Bars Highlighted.
  2. Ensure that Antenna is connected into the proper GPS Port which is the lower port of the 2(On Most Models,Some may only have 1 Port) located on back side of Radio
  3. Ensure that Antenna Connection is secure.
  4. Ensure nothing is obstructing reception (i.e Metal under dash or tall buildings)
  5. If none of the above work,contact our Tech Support Dept. for further assistance.