hi, mine is a suzuki swift 2008 (hatchback). my current setup: Front speakers: Sony xplod XS-GT1638F (16cm, 3-way coaxial, 260Watts) Head Unit: Pioneer DEH-X7550SD Back speakers: non-brand (dont know exact specs, very low sound) I want to put a pair of Pioneer TS-A1675s (3-way, coaxial, 300Watts) in the front, send the sony speakers in the back. the head unit stays the same. How do you reckon this setup would perform? waiting for your thoughts guys.