yeah right. I want to upgrade sub? I am wondering if it has a sub already the one i almost purchased before this advertised a sub but who know. i don't want it to look tacky id love to be able to put the sub descretly and not weigh down the car much. any pointers to beef up the sound would be greatly appreciated thanks. i guess the two main questions does it have a sub and will me adding a sub void the warrant? also could an acura dealer beef up my sound system it cannot seem to handle bass at ALL it drives me crazy. thanks for your help