I have upgraded my 2009 Fit Sport. With the help of this forum I have swapped out the stock HU for a Pioneer Deh-7300BT. No more local/horrible DJs for me. I'm listening to Pandora constantly now. I also dug up an old pair of Infinity 6010 cs component speakers and crossovers. They are in the front doors. Stock speakers in rear doors. I have applied Fatmat to front and rear doors. Used aluminum flashing to seal doors. Have also dampened rear cargo area, hatch door and back seat floors. I didn't feel like pulling the front seats but may do so down the line. I have two Kenwood amps coming from Crutchfield as well as a Rockford Fosgate R10 (10 inch sub) and ported enclosure. Looking forward to getting everything set up. Haven't driven on the highway yet but I can tell a big difference in road noise around town.