Not sure how you have GPS tracking with no monthly fees, since the tracker has to "call back home" to report its location.
Amazon seems to have some good systems that are reasonably priced, $40 then $7 a month.
https://www.amazon.com/Trak-4-12v-T...id=1651151676&sr=8-3#customerReviews

Joe


Without Data, you’re just another guy with an opinion.