ok, I just picked it up. Woo-hoo ! :D
Got it from Car Audio Security. Paid slightly more for it (£230) but at least they had it in stock, and also they're not that far away from me (they're near Heathrow) should I need to take it back.
Of course I should really have had all the fascia finished by now, but I haven't. So now I can work on getting that sorted, so that I can get it installed before long.