[rdass623]

I have installed a Porsche ipod interface in my 05 boxy s, with the bose speakers and the pcm 2.0 system. when playing music, the quality seems to be poor. the speakers are producing a cracking sound with the bass notes, and the sound quality has a "tinny" sound to it. is this common with this system? has anyone else noticed a similar occurrence? any suggestions? while using the normal stereo function the sound system sounds phenomenal, but with the ipod running it is not so good.