amp or sub

Hi guys just a quick question, with the standard set up in the cupra (readio and cd changer) is there any way to link a amp up? thanks:D

I know, I know, 6x9's are not highly regarded! Anyway, I fitted a new head unit today to my MK4 Cupra, but unfortunately, as I thought, it was not enough to sound good enough. I listen to a lot of dance tracks, and the standard setup just doesn't cut the mustard. Previously in my MK3...