just saw this and wanted to share. full BA system for sale on ebay
flip out tailgate speakers, sub and amp, 4 doors and tweeters

http://cgi.ebay.com/ebaymotors/07-Jeep-Patriot-Compass-Caliber-Speaker-System-OEM_W0QQcmdZViewItemQQ_trkparmsZ66Q3a2Q7c65Q3a16Q7 c39Q3a1Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQha shZitem200288621005QQitemZ200288621005QQptZCarQ5fS peakers