did some research last night, it turns out most of the modorn GPS trackers the gov is using are self contained units that are attached by magnets to the underside of the vehicle. bjybjy is right to a point, however if this is okd then it opens the door, pretty much for any thing goes. The boiled frog system has been used with great success for the last 50 or 100 years.
if you go to Coasttocoastam.com you will se the old system where the implanted bugs in the dash units.
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