Once you’ve heard sound coming from quality replacement speakers, old factory speakers will sound, well, old. If you decided to go for the amp and sub, you can get speakers to pair to them to further enhance that set up but you can also replace your factory speakers even if you don’t go the amp and sub route. Don’t forget that every vehicle is different so it’s best that you make these improvements with a professional who knows exactly what your car needs and how to instal it. Hey thats Mad Soundz. The only thing we recommend doing yourself when it comes to your new system is showing it off.