Postby taz » Wed Mar 23, 2011 9:29 am
buy a sealed powered sub ( kenwood, infinity, pioneer all make a decent one), then wire it in using a line level converter. I think the infinity will let you do it without a converter though.
That is the easiest way and the pioneer and kenwood will fit under the front seats. no extra amp needed. If you want a full higher powered system then you'll need an IDQ8 or Rockford 360.2 unit to convert all the factory signals into a usable preamp for amplifiers