My current Standard Horizon Quest GX1255x VHF radio has an input from the GPS but no output to input DSC data to the GPS/plotter. The gps/plotter has input wires (not connected).. I asked the salesperson at a local Boaters World store concerning which VHF radios have a DSC outputs, but they were unable to tell me any...??? I am looking for something with the DSC output capability that is very similiar in size to my current Quest radioStandard Horizon Quest radio. Any suggestions?