Is it possible to fit a nice sub without an amp in a mk1 172, or does the stereo have no amp? I no nothing at all about ice, but I thinking of getting a decent ish sub as the bass in the standard set up is abit crap and buzzy. Whats the cheapest and easiest way of getting a sub in or do you have to have an amp as well, also anyone got any ideas how much this oot would cost fitted.