The Radio Information Board

HI I JUST UPGRADED FROM A 730/830 TO A 790/890. I HAVE THE SOFTWARE HOWEVER I CANT GET INTO PROGRAM MODE AND CANT FIGURE OUT IF I NEED A PROGRAMMING CABLE THE 730 MIC FIT CABLE OBVIOUSLY DOESNT WORK. SO HOW DO I PROGRAM THIS RADIO I FOUND THE PIN CONNECTOR ON THE BACK OF BOTH OF THE RADIO ITSELF TRIED THAT NOTHING. OBVIOUSLY IM NOT FAMILIAR WITH IT PLEASE HELP THANKXXXX !!!!!

You will need a new programming cable. The 90 series programs through the microphone connector. It's also different software. The cable is availabe for about $120 from Kenwood; likewise for the software. You can probably find a knockoff on Ebay, but you'll still need new software.