I have an 02 w/o nav, w/o DSP. I would like to upgrade the speakers, but a couple of questions have come up as I search the old threads.
1. The BSW stage 1 is appealing, but why use 5 1/4" if 6 1/2" will fit? I have a set of CDT 6 1/2" comps that are collecting dust.
2. I have read that the stock amp has built in crossovers. Is this correct?
Thanks in advance.

__________________
2004 BMW X5 3.0i - Mine
2011 BMW 328i xDrive - Hers
2002 BMW 325xi - waiting for a new owner