uk yaris stereo upgrade

[yaris781]

hi everyone
would be really grateful if anyone can advise me on some info i need.
ok. i have a 2006 yaris (uk spec) unfortunately the headunit is absolutely rubbish. i'd like to upgrade it but to do that i need the fascia/surround which is fitted in us/canadian models as factory fitted.(uk is completly different)

i would be very very grateful if anyone could tell me where i could purchase the original surround from

i have tried contacting dealers in the us but they do not want to sell/ship to uk any advice appreciated
thanks in advance