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The tuner connection for your SAT Nav in the Rosen system may be disconnected, or its power wiring may be unhooked so that it cannot function with the Rosen.
(Or perhaps it simply hasn't had a connection to the Satellite for navigation yet.)
But given that the car was just worked on, you have a right to complain to the alarm repair facility, since they apparently unhooked something vital to your car's navigation. (E.g. the antenna to the satellite nav tuner, even.)