This is not a Sony radio. Part number 8M5T-18C815-AA belongs to a (silver) Ford 6000CD radio. The Ford 6000CD radio's do not support USB. Only the oval single-CD and 6-disc Sony radio's which are produced after 08-2008 and the Travelpilot FX and NX satnav systems support USB. This means you will definitely need another radio to get the USB functionality working.
The pinout of the old type Bluetooth/Voicecontrol module is slightly different than the pinout of the new type Bluetooth/Voicecontrol module. As far as I remember it is nescessary to add an extra positive and ground wire and rewire the AUX wiring. In fact the module is connected between the AUX wiring. The new type modules uses the (stereo) AUX input of the radio. Modifying/rewiring the wiring is only needed if the part number of your current module starts with a 7. If the part number starts with a 8 you already have the correct wiring.
The Ford Audio Update does only update the Bluetooth/Voicecontrol module. These updates fixes certain known Phone compatibility problems or improve certain functions. The radio itself is not touched by these updates.
Cheers for clearing that up for me mate looks like i wont be doing this retro fit any time soon if at all. i cant seem to find the right stereo. i can see a few being sold on flebay but most of them where produced in 2007 or early 2008 which makes then not compatable And my current module begins with 7 so re-wiring needed as well.
There are some made in 2010-2012 but they seem to be overpriced, so for now i think im going to have to live with just listening through the AUX. I read somewhere that the sound quality is not that great when using wireless streaming, can anyone with experience using it shed some more light on this for me.
Gonna be sticking the new USB module back on flebay