I posted this on the Scorpio forum many years ago, explains it all fully..
To obtain your radio code you will need the serial number of the radio, usually shown on the label on the right side of the radio.
eg. M123456
The radio will need to be at least partially removed to see this using the correct removal keys.
A request on the forum showing your serial number will usually produce the code fairly quickly.
Or the software can be downloaded from
HEREWhen running the software the following appears :

Enter your serial number then click on the large No. 5 Preset button on the bottom to generate the code.
To exit the software click on the large on/off button on the left
To enter the code on the radio use the large preset buttons on the bottom of the radio (1-6) RDS 4000, 5000, 6000 etc.
eg. Code = 2487
press button 1 to cycle through the numbers until 2 is displayed.
press button 2 to cycle through the numbers until 4 is displayed.
press button 3 to cycle through the numbers until 8 is displayed.
press button 4 to cycle through the numbers until 7 is displayed.
press button 5 to enter the code.
If 3 incorrect attempts are made there will be a 30 minute delay before you can try again, the key has to be in the ignition position 1 during this time, removing it will reset the timer.
After 10 wrong attempts the display will show LOCK 10
Holding button 6 while turning the radio on will give you a further 3 attempts.
If these three are entered incorrectly the display will then show LOCK 13 and you will now need to get it reprogrammed