Dreaded squeaky windows....R56

Hi all. Looking for any advice, please!.
I am sure this is a known issue but I couldn't find any definitive threads for a fix?
Now the better weather is here, when winding down both windows they have started to squeak like a banshee (can be a bit embarrassing, actually). I have tried a silicone spray but problem persists - anyone have a fix i.e. is it just a case if taking both panels off and regreasing / replacing cables?. Thanks in advance, S

When you say you have tried silicone spray ,do you mean on the door guides for glass or on the actual window mechanism?

Just on the glass and spraying down between rubber seal i.e. without actually taking door panels off yet.....

You’ll need to take the door panel off and lubricate and with giving the seals a little clean

Great, thanks!