I've got a 2010 TSX w/Tech, and keep hearing a squeaking sound from the subwoofer especially on music with a lot of bass. It's really obvious whenever you have the trunk open or the back seats laying down, but is mostly drowned out when everything is shut. Is this "normal" or should I take it in for a warranty repair?

Also...anyone notice a popping noise from XM Alt Nation ch 36 over the past few days? Can't seem to get it to happen on other channels so I think it's just crappy XM sound.