Johan Wagener ) gurgled happily, sounding much
like they were saying :

website seems to be very considerate towards people from outside US. no
option for South Africa. VIN number does not exist on their database.

Since that's a US website, and US Fords are very different to European ones,
it doesn't surprise me. Gawd knows whether a Seth Effrikan 'scrote is
similar to the ones here.

Have you tried Ford locally? Or, perhaps more usefully, a local car audio
supplier.