HELP?! How to fit aftermarket stereo to SEAT Ibiza (1998-2002)

Hi,

I have a SEAT Ibiza Chill 1.4 2002 (box shaped) and I was wondering if anybody knows how to fit a aftermarket stereo to this type of car?

The Fascia isn’t like a Corsa/Fiesta where you can easily fit your own radio, it’s one big faceplate.

Is there anywhere that sells faceplates with a stereo cut out or is there anyways to do it yourself?

Thanks in advance