How would one get this 3pk "reprogram"?
Reprogram? Not needed. Just go to the 4PK thread and follow my videos of how to program a 4PK (its the exact same as a 3PK).
For everyone else. The DX3R can't really do anything. It is way overpriced for the minimal features it has. The 4PL will bury that radio in features and abilities for LESS money. Go check out the 4PL thread and you can see "thumbsup"
Here is a video of the 4PL capabilities.
http://www.youtube.com/watch?v=WYR6jJznnPs