If your radio displays an error message (often after a battery change), it likely needs the original boot files found on the SD card. Software Updates | Updates | Support | ECLIPSE | DENSO TEN

The Eclipse AVN 133 MRC software is a proprietary navigation system developed by Eclipse, a leading manufacturer of automotive electronics. The software is designed to work with the Eclipse AVN 133 navigation system, which is a popular choice among vehicle owners.

Despite the lack of official support, you can still find functional software. Here are the safest approaches: