Ok well after driving around in my 06 Sti for about a week i wasn't too happy with how the audio. I was thinkin on transferring my old system which include Infinity Kappa Components powered by the Infinity Kappa 5 (A five channel Amp) and a sub. Well I HATE rattling especially in trunks. I was wondering if any of you guys had more info on how bad it rattles with a 10" or 12" in the trunk. Thanks guys!