Yes i did this years ago with my original set up which has long been sold on.
I have another 910 now with a UK PSW9521 headunit, pretty much the same set up i had originally.
It all works fine, well it plays music. I dont do much else with it except change the disc or track.
I have genuine viot and AAC serials from my old set up but again i have no way of useing them, thank god for you guys with that little problem.
Thanks guys for your answers here, it's much appreciated.