A multiband vehicle rooftop antenna assembly includes first and second cellular antenna configured to be operable over one or more cellular frequencies. The multiband vehicle rooftop antenna assembly includes first and second satellite antennas configured to be operable over one or more satellite frequencies including Global Navigation Satellite System (GNSS) signals and satellite digital audio radio services (SDARS) signals. The multiband vehicle rooftop antenna assembly includes a V2X antenna configured to be operable over Dedicated Short Range Communication (DSRC) frequencies. The first satellite antenna is located between the first cellular antenna and the second cellular antenna. The second cellular antenna is located between the first satellite antenna and the second satellite antenna.