Mk1 Fabia Audio

So guys, I bought myself a mk1 Fabia VRS to drive daily and to stop putting miles on my Polo GTI.

It's a 2003 model which I bought for £1300 with 98k on the clock.

Of course at that price there was some issues. One of course is 2/4 speakers are goosed. Now I could go to Skoda and replace the speakers but what's a good set of speakers for cheap I can get to replace the lot? The car has a Sony head unit fitted so I might also add a subwoofer in the boot if I get one cheap enough.

Pics of what you've done would be great!

Thanks. Joshers.