Is this the oval shaped Sony radio with red illumination? In my opinion the number you should be looking at is 02-04-05 but this is firmware version is either very old or it should be 04-05-02 (based on the Ford/Sony technical manual). Either way I suspect this radio will not be able to support USB playback.
There are a few other things you could check to determine your exact type of radio:
* Remove the radio and check the production date and part number. These are printed on a label at the side of the radio. On this label is also a stripe printed in a particular color (for example: Light Grey, Dark Blue, Pink, Beige, Green, Black, Red or Dark Blue). Based on the production date, part number and exact color of the stripe I can determine the exact radio type and which software version should be on the radio.
* Check the part number of the original Bluetooth/Voicecontrol module. If the number is 7M5T-19G488-AX (the X can be any letter) you have the old Bluetooth/Voicecontrol system. In order to get the USB functionality working on the old system you need to have a suitable radio (which supports USB), a suitable Bluetooth/Voicecontrol module (part number 8M5T-19C112-AX) and you need to modify/rewire the Bluetooth/Voicecontrol wiring.
If the number is 8M5T-19G488-AX you already have the new Bluetooth/Voicecontrol system. In order to get the USB functionality working on the new system you need to have a suitable radio (which supports USB) and a suitable Bluetooth/Voicecontrol module (part number 8M5T-19C112-AX). In some cases it is also required to change (or rewire) the loop connector which is fitted between the Bluetooth/Voicecontrol wiring.
As far as I know oval shaped Sony radio's which are based on the new Bluetooth/Voicecontrol systems which do not not support USB do only have different software compared to the Sony radio's which do support USB. It should be possible to update the firmware to a newer version but until now I never found someone who actually has enough knowledge to do this.