Yes you can. But I advise you to get a shop to do it, it's not easy. I have two Amps hooked up, 10" Sub and still have the stock Shaker 500 installed. Will eventually get a different head unit.
07 GT. SCT: CUSTOM TUNE by "MUSTANG SPECIALTIES". LMR: GEN2 2010 STYLE HEADLIGHTS, RAXIOM: 2010 SMOKED COYOTE TAIL LIGHTS, WHEELS: STAGGERED WHL 22X8.5F-22X10R.