Since i got the car the woofer hasn't been working.. Checked everything including resetting the radio & checking if the amp light is on (which it is)... I also checked the sub-woofer mute button in the menu of the head unit & that's off too... Is this a common problem or am I just the unlucky 1 who got a wrongly wired or malfunctioning system?? Oh well i got my appt at the dealer for wednesday of next week...