This is the one retrofit Radar Blind Spot monitoring and detection system that works like an original equipment-based system. Based on components validated by Toyota, it works closer to the systems found on new vehicles than any other system available. This is the one retrofit Radar Blind Spot monitoring and detection system that works like This is the one retrofit Radar Blind Spot monitoring and detection system that works like an original equipment-based system. Based on components validated by Toyota, it works closer to the systems found on new vehicles than any other system available. This is the one retrofit Radar Blind Spot monitoring and detection system that works like