i have a 03 GT, have the machMP3 head unit, but i dont have the mach460 speakers or amp. its the basic sound system(factory) then i put in the machMP3. anyways i had 2 12's and it sound good, but i took them out(would rather have less weight than excessive bass). now my system sounds like **** without the subs(no bass AT ALL). what speakers can i get that have good bass? i have a set of infinity kappas in the rear right now. i was thinking bout finding a speaker with good bass to put in the rears and move the infinitys to the front. any advise? or any way to make my radio sound good without running the subs again?

 

Make a very small enclosure and put a 10" sub in it. Weight will be very minimal and 1 10" sub will be plenty of bass, I assure you. I had 1 10" pos sony from Walmart in mine and it was plenty.