This device doesn't interference mobile phone and other wiring (electronic device)
This device doesn't affect navigation device which installed on other cars.
It adopts the technology of interdiction and interposition code, so will intercept the signal
of satellite and break it completely
Official tracker units (depending on models) use VHF tracking technology and Tracker also use GSM and GPS in combination.
I think it COULD work, but i am not a 100% sure