KPG-D3 requires a separate license key that must be authenticated through Kenwood’s servers using a specific application called the KPT-300LMC (License Management Client) . Programación básica KENWOOD serie NX 3000 con KPG D3K

| Option | Cost | Risk | Legality | | :--- | :--- | :--- | :--- | | | $50–150 | None | Legal & Safe | | Take radio to a dealer for update | $25–75 (labor) | None | Legal | | Search for cracked "free" versions | $0 | High (bricking/malware) | Illegal (Piracy) |