My front left speaker has broke, was wondering what size replacement I need for the two front speakers, may aswell do them both at the same time! 

May I add my car is a 2013 skoda fabia 1.6 tdi cr s

When you say 'broke' have you blown them up?

Might be worth trying to blagg a warranty claim if you're happy with standards again?

If not. I believe theyre 6.5 inch.

its just making noises its not supposed to make if the volume is remotely louder than quiet, was looking to upgrade them anyway in all honesty, nothing too powerful, just something better than standard! i think i have some 6.5's from my old car, if they fit thats handy!