okay well i have recently gotten brand new 4' speakers in the front (rockford)... anyway i also have 2 type r12' subs powereed by a 1000watt MTX amp.. my speakers still arnt loud enough for me so im thinking about getting an aftermarket 4channel amp for them. my question is, how hard is the install? Also, has anyone done this before? thanks!!

 

It's not a drop-in, plug-in sort of upgrade, but it has been done. Many times, as a search will reveal.