The reason I ask is that it is clear (to me) from reading these forums and from my own side be side testing of i415 cell phone and VehiclePath dedicated GPS tracking unit is that the cell phone suffers from reduced signal levels while inside the vehicle, which, when the emidiate environment around the vehicle is "worst case", ends up in no or inncacurate postion info. The vehicle path solution is in generat 5X more accurate than the i415 solution, but the user interface sucks. So I am hoping I can get an amplified gps antenna similar to the one VP has that can be hidden behind the door pillar trim and apparently gives great signal levels, and get better AT tracking.
But to do this I either need a combo single connector antenna, or separate inputs for GPS and cell frequencies. THe latter would be less expensive.
If someone knows a link to a combo, single connector solution that would be great too.
