The cable supplied with the modem has color-coded wires on one end, either as shown in Figure A or in Figure B below.  You will need to determine which type you have before attaching the connector required for the data connection to your specific radio.

You can easily determine which cable type you have by using a VOM to check for continuity from pin 8 on the molded Radio plug to the blue wire on the other end of the cable.  If there is continuity, you have Cable Type A.  Otherwise, with pin 8 continuity to the black wire, you have Cable Type B