Your service advisor will be able to tell you whether there are any updates available for the Bolero in your car but I'm betting the answer is no. There appears to have been a firmware update for the Boleros but it only applies to units manufactured with that update and is not able to be installed on older models for whatever reason.
You can buy a new 1TB 2.5" hard drive these days for less than what it would cost you in Australia for an MDI to iPod cable so that would be the way to go imo. If you are only using the drive to store music files there is no practical difference whether you use FAT32 or NTFS as far as playing the music is concerned.
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