Ford Ranger CDR 4600 Lock Code 10

[lyniebish]

I have a Ford Ranger with CDR Player from Visteon with Keycode 2556. The unit is locked with LOCK 10, and I'm not sure how to enter the above keycode to activate the radio. Any advice on how to get the radio working:

2L54-18C838-EA
Serial: AHDM002060
Key Code: 2556

Thanks in advance