I would ditch the 18's and do 15's. I also have a $3200 budget and this is what I'm getting: ECLIPSE CD 7200MKii (HU) HERTZ MLK 165 (front stage) 2 ARC AUDIO KS 1000.1's (sub amps) 1 ARC AUDIO KS 300.4 ( front stage amp ) 2 HERTZ MILLE ML3000 12" ( subwoofers ) or 2 HERTZ MILLE ML3800 15" ( subwoofers ) Have u looked into hertz and arc audio? Also have u looked into pioneer double dins, they have a bluetooth unit that's $300 and something. I suggest looking to ( datboiroy ) he's a classy guy who would be more than happy to help u out. U can check his feedback thread if u'd like. He's helped me put my system together. U can pm him and tell him josh sent u if u'd like. His prices are unbeatable.