If you maintain a plugin or want to translate missing parts of Eclipse, follow these steps:

If you choose to navigate the interface manually, matching the shapes of specific Japanese Kanji and Katakana characters will guide you to critical submenus: Change Car Radio Language from Japanese to English

Some car audio enthusiasts choose to seek aftermarket custom firmware or SD-card-based map conversions to force the system into English. However, these solutions are often unofficial, require specific technical know-how, and can be model-specific. A Note on the "G" or Anti-Theft Lock Many Eclipse navigation units, including the Go to product viewer dialog for this item.

Bluetooth (ブルートゥース) -> Settings. Audio/Music: Audio (オーディオ). C. Specialized Technicians/Translation Services

Save the file and launch Eclipse. It should now display in your chosen language.

This is the primary method for switching between Japanese and English. The steps below assume you are starting from a Japanese-language menu.