Retrofit satnav

Hello everyone.

First time poster.  Be nice please!  

My wife has had a Rapid Sport for a month or so now and is pretty pleased with it.  Big enough to move the kids, small enough to park in Tesco.  

She has mentioned having satnav fitted to it, either an amundsen or columbus.   It seems an easy enough job to retrofit one of these units, but does anyone know where to source a replacement facia plate from.  The old one clips off easily enough but clearly being the plate for the Swing radio, its not going to fit either of the satnav units.  My local independent garage are happy enough to fit the radio, (along with a dashcam to be permanently wired into the fuse box at the same time), but pull their face a little about the facia plate.  Anyone know where i can get one?  Is it the same as the Fabia?

Thanks.