I know you have 1 under each front seat and I believe you have 2 in the rear deck for a total of 4 subs. You have 13 speakers throughout the car. I have a non-logic 7 328i coupe with just the 1 sub-woofer under each front seat for a total of 2. I have 10 speakers throughout the car.
That's pretty cool. Thanks for the info. I am going out now to see if I can actually find them I am mistaken or is this an amazing, I mean....AMAZING sound system. The center sound channel just put Shakira in my lap!!!!