The CPS version you require depends on the firmware version in your radio. This can be checked via the Utilities->Radio Info->Versions sub menu accessed via the front panel. You may not need Ver.16, an older version of CPS will work fine for earlier firmware releases. You will need the NA CPS for an XPR. If your version of firmware is a number format R02.XX.XX and not R02.XX.XXXX older versions of the cps will be fine to use starting support for Mototrbo_2 platform radios.