Glad to hear another X5 owner from AZ. After much research, advises from Ken (www.avincar.com) and much much debate, I decided to go all out with the upgrades , which start out originally as a the speaker upgrade only). Man, after I listened to the Dynaudio line, I am hooked.
I got the components already. So far, I got the Dynaudio System 340, Dynaudio MK 240, McIntosh MCC406, a graphic EQ Pioneer DEQ-9200 that I used to have. I have DSP and probably will use the LC8 Audio Control to get my pre-amp output. I currently have 12W6V2 run off a JL500/1 but still not sure to just run this subwoofer off the channel 5 & 6 of the McIntosh MCC406, or keep the subwoofer set up and use the McIntosh MCC406 to power all the other speakers.

It was quite tough to retrofit and install the 7" mid-woofer but they are installed in the front doors. I have not installed the amp yet but I already notice a big differences after changing out the speakers. I plan to put the tweeters on the dashboard like Ken did and put the mid-range speaker in the rear door but not sure how that will work out. Any suggestion, Ken?

Justin.