To change the language on your Eclipse AVN669HD, follow these steps:
Eclipse (Fujitsu Ten) no longer manufactures car audio for the consumer market. For specific firmware files, visit [AVN669HD Forum Archives] or contact a specialty car audio repair shop that handles vintage Japanese head units. Eclipse Avn669hd Change Language
If you are trying to find settings blindly, look for these Japanese characters on your screen: 設定 (Settei) : Settings 言語 (Gengo) : Language 英語 (Eigo) : English (in the rare event a language toggle exists) visual guide To change the language on your Eclipse AVN669HD,