and NX series units are common models requiring these cards for unlocking and language translation . Troubleshooting

Are you trying to a specific Japanese Clarion model or just looking to update maps ?

: Usually found behind a flip-down screen or a small door labeled "SD Map" .

Clarion Unlock Code, CLARION Unlock Code – Language Translator device – Original Japanese radio unit – Low cost Chinese radio unit

Facebook·NavigationDisk - Japanese Car Radio unlock solution

is a frequent provider for these specialty map cards and unlock codes .

: Remove the card and gently clean the metal contacts with a dry cloth before re-inserting .