Cheap 5.1 Surround Sound Systems?

Hi guys
I have an old school Sony receiver hooked upto 5 speakers and a sub. I have purchased a spare cable as i lost the cable for the front right - so bought one [off ebay] in the hope it fits and works.

If not, i’d be looking to buy a 5.1 system no more than £130.
I’ve seen a few on gumtree and also some others called " Auna Multimedia " from Germany.
They sell loads of 5.1 surround sound systems ranging from £60 to over £200

Can anyone advise ? I like to listen to music and watch the occasional film.