New 2005 TSX owner and love the car with one exception. My previous 3 cars have had superior sound systems to the TSX including a Ford of all things. Unlike probably most of you I listen to classical. The system lacks depth and definitely bass, sounding as if coming out of a tin can. CD is worse than radio. Is there an easy inexpensive way to improve this? Perhaps simply replacing the rear 6x9's. Thanks in advance for any info.