Mondeo 2003 - Sony Mp3 Stereo

I've got a Mondeo 2003 V3 Ghia-X with a Sony MP3 stereo (original). Does anyone know if it's possibly to update the firmware on this? If i have TP ON
or NEWS ON and the radio breaks in, the DSP freaks out......
Anyone have an online manual for this stereo? (pdf, doc)

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