I'd like to start an upgrade ('07 328i) with front door speakers - the stockers hurt my ears at certain frequencies. I've seen MB Quart RUA 210s posted as a good upgrade that fits with no modification. They are in the $150 range online. My questions:
1) Anyone done this (with or without these speakers)? Are the Quarts the only options for a non-mod speaker choice?
2) Those speakers come with crossover boxes: do I need them? The stock amp supplies its own crossover frequencies. Do I have to install them? Can't I just wire up the speakers?
3) Anybody checked these doors for sound deadening? Would it be worth it to dynamat (or something similar) them when I've got them apart? The few pics I've seen look like there isn't much room to get sound mats into the doors.
Appreciate some feedback!