Can you provide the RTR# of the radar scanner in question? When you provide an RSB number; you are only providing half the information. The RSB number tells us what the physical gear box that was used, but not what electronics are inside it. Furuno will put different electronics into gear boxes for different models. To fully determine compatibility, we need to know the RTR number in addition to the RSB number. You will normally see the part listed as example RSB0071-058. The first part of the number is the RSB (gearbox) and after the dash is the RTR number (electronics). The RTR number is normally listed on the scanner below the RSB type number, as part of the FCCid#. It will end in RTRxxx. If you can provide the RTR number of this scanner, I can be more helpful.