I was wondering if you guys have installed a 6.5" Speaker to replace the original speaker behind the door panel on the E46.I have this itch to install a pair of Rockford Fosgate FNX2614 Component System while maintaning the original HU and add an amp as well as a sub.Top Mounting Depth for the speaker seems 2.62" as per the spec I have. I know it will involve cutting and modification to the metal for the speaker to fit a 2.62".Any comments whether the size fit, the quality of this speaker or your personal experience on a 6.5" speakers on E46 appreciated.