SUMER engineers and supplies car manufacturers with OE    active radio, GPS, and power antenna systems, as well as   related harnesses. Our products are designed based on car factory technical requirements and quality, performance, and safety standards. An antenna with certain parameters could be designed in multiple ways. SUMER strives to guarantee the minimum prices for its customers while fulfilling the performance and quality requirements. We offer both shark-fin and conventional active antenna systems. For a list of parts supplied to car factories, please see our projects page